What is Cloud Computing and Segments of Cloud Computing?

By: Animate

What is cloud computing?

Cloud computing is Internet-based computing, whereby shared resources, software, and information are provided to computers and other devices on demand, like the electricity grid. In other words, Cloud computing refers to anything that involves delivering hosted services over the internet and encompasses any subscription-based or pay-by-use service that, in real time, extends IT's existing capabilities.

In general, cloud computing customer avoids capital expenditure of the company thereby also reducing the cost of purchasing physical infrastructure by renting the usage from a third party Provider. The companies devour the resources and pay for what they use. Many cloud-computing offerings use the utility computing model, which is similar to traditional used services like electricity are consumed, while others bill on a subscription basis. So sharing "unpreserved and intangible" computing power among multiple customers can improve operational rates. A side-effect of this approach is that the overall computer usage has risen severely because the customers do not have to engineer for peak load limits.

The most common example of cloud computing is yahoo mail or Gmail. You just need an internet connection to send emails through them. There is no need of server or any software to use them they are simply available on internet.  The major benefit of cloud computing is it has reduced the cost or capital expenditure of the companies. The company needs to pay for what it has used and upgrades are also done automatically.

Segments of Cloud Computing

Cloud computing has three main segments which are as follows:

• Applications
• Platform
• Infrastructure

Each segment serves different products for businesses and individuals with different purpose. Get cloud computing ppt slides to make attractive powerpoint presentation on cloud computing.

Applications – It is based on, o demand software services. On demand software services come in different varieties. They vary in their pricing scheme and how the software is delivered to the end users. In the past, the end-user would purchase a server that can be accessed by the end user over the internet.  Salesforce.com (CRM), Google (GOOG) and NetSuite (N) are some of the companies which provide on demand software or SaaS business.

Platform - The platform segment of cloud computing refers to products that are used to deploy internet. Net Suite, Amazon, Google, and Microsoft have also developed platforms that allow users to access applications from centralized servers. Google, Net Suite, Rackspace cloud, amazon.com and salesforce are some of the active platforms.

Infrastructure - The third segment in cloud computing, known as the infrastructure, is the backbone of the entire concept. Infrastructure vendors' environments such as Google gears allow users to build applications. Cloud storage, such as Amazon's S3, is also considered to be part of the infrastructure segment.

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Discount Computers Warehouse, Where Every Customer Is Important!

By: cheapcomputer001

Electro computer warehouse, (http://www.electrocomputerwarehouse.com/), is that Discount computer warehouse where you can get best economical packages to upgrade your technical living style.

 

The best part of your future plan:

Parents always plans to save some amount to brightened their children's lives, we Electro computer warehouse are one of world's famous computer warehouses who provide ultimate services and helps you to save lot for your future plans and spent all your saving on your loved ones.

The History of computer warehouse:

It started after 2006, when the whole world started progressing towards buying Cheap Computers and Refurbished Computers. The rising demand of these computers is growing day by day and then many multinational companies taking interest to investing something BIG in this business. People were astonished by the results and their interest starts increasing day by day.

How and Where?

Before purchasing the question how and where always comes first…after spent few moments on internet surfing you will easily find out the answer, yes no other then Electro computer warehouse comes in leading names.

Electro computer warehouse the perfect directorial service:

We have built our status on given the best-quality customer service. There are very few authentic services offering after sale service and also guiding you if you are a beginner. After a detailed review, we find out that there are hundreds of dealers are in this field but what they are offering is not worth. Electro computer warehouse is name of a most dedicated teamwhich is not easy to find in any other computer warehouse.

The Mission:

Our Mission is to spread technology throughout the country by giving very cheap deals. We deal in;

• Core 2 Duo laptop
• The Dell Latitude D620
• Cheap Computers
• Refurbished Computers
• Used Computers
• Cheap Laptops
• Refurbished Laptops
• Used Laptops
• Off-lease Computers
• Pentium 4 systems with Windows XP Professional
• Cheap desktop computers
• Cheap laptop computers
• Cheap desktop computers notebooks refurbished laptops
• Used laptop computers
• Refurbished dell computers
• Used dell computers
• Dell computers desktop deals
• Refurbished HP desktop computers
• Used XP pro computers

 

About the Author

Marcus - Sales and Technical Advisor to Customers @ Electro Computer Warehouse

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computer running Slow - make Your Computer Fast Again

By: Brad Armstrong

If you are like most people then you probably have a computer running slow and seems to be taking forever to do common tasks. What is it that she causes your computer to slow down so much sometimes even the point were it locks up? We are going to discuss several things here that can greatly slow the performance of your computer and even make it so it stops functioning correctly altogether.

It could be a virus (like the recently popular Google redirect virus) or other similar malware program you may have gotten off the internet. All it takes for you to visit a website that is set up to exploit Microsoft Explorer security holes in the next time your computer restarts itself to install updates, which many computers are set to do this on a frequent basis, they will start up with the virus or other software running and you may actually see it. It could also be spyware or another malware variant (like a trojan horse or worm). Any of these programs or malicious codes could easily slow down and bog down your computer (especially a worm as that is its sole purpose).

Why do these programs result in your computer running slow? Sometimes it is the purpose of that virus or other malicious code to make your computer malfunction or run slow. More than likely, it may have turned your computer into a bot where behind the scenes it is sending e-mails with spam, similar viruses and more. Hackers and virus writers out there had been using these bots to send millions of spam e-mails and turn that into millions of dollars. One computer may not sound like a lot but when you get millions of them infected and all doing the same thing until they get caught these guys can make a lot of money.

There are even programs called worms whose sole purpose is to continuously build up and run more and more code so that your computer basically cannot do anything else. Sometimes you may not even realize that you have some spyware or something Slowing down your computer and you really have not noticed a whole lot of slowing down as of yet but it will build up. The other danger is that meanwhile not only is your computer slowing down these malicious programs could be stealing your personal data and you could very well become a victim of identity theft. So it is best to avoid websites that are known to have malicious code in the way of viruses, trojan horses, malware, spyware, worms and more.

It is also a good idea to have a good antivirus program installed and up-to-date on your computer at all times. Be sure and set it up to run a full scan at least once a week. Another item that is known to greatly slow down computers and occurs on virtually every computer out there is registry errors, hard disk issues, missing and incomplete data, etc. is registry errors and similar glitches and errors with the operating system.

Our computers run millions and millions of commands and calculations every day and we expect them to run perfectly but computers are not perfect and with all the millions of bytes of data that go in and out of the computer constantly there will be errors, accidental deletions, problematic overwriting, lost extensions, etc. and no matter who you are or what computer you used this will affect you. To fix this you need a system and registry scanner utility.

If your computer is running sow scan it now and speed it up again. Click here to scan your computer and make it  run like new.

 

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Why You Should Consider Renting Computers

By: Sean Murphy

Renting computers is a great option for new businesses, students and anyone with short-term technology needs. Depending on your requirements and financial situation, renting computers may or may not be the right choice for you. Before going for computer rentals, assess your needs, the time period for which you need the equipment and your budget. It is also important that you choose a reliable computer rental provider for a good rental experience. Computers can be rented for a number of purposes.

 

Business requirements

 

New businesses have to accrue a huge expense to set up their IT infrastructure. To cut costs, many companies turn to computer rental providers who provide the latest technological equipment at a fraction of the cost needed to buy similar equipment. Another situation where computer rentals come in handy is when temporary offices are set up for a short duration or contract workers are hired for a couple of months. Extra computers can be rented for the required time duration and returned when there is no use for them.

 

During corporate training, presentations, conventions or trade fairs companies often require desktops, laptops and other IT peripherals. Purchasing new computer hardware is not just expensive but also unwise as you will be left with excess computers after the event, which you'll no longer need. Storage and maintenance are other hassles when you have excess computers.

 

Some professionals prefer to source laptops from computer rental services when they are travelling on business trips. Those who don't want to carry their laptops on business trips can also go for computer rentals.

 

For people with bad credit

 

Businesses and individuals who have poor credit may find it difficult to obtain funding/loans to buy new computer equipment. Computer equipment rental providers rent computers to bad credit borrowers without much of a hassle. If you want to own the equipment but have a poor credit history, you can go for a rent-to-own plan offered by rental companies. Under this agreement, you can own the equipment after making a pre-specified number of affordable rental payments over a time period.

 

Computer rentals are also helpful for college students who have no credit to speak of and cannot afford to buy new high-end laptops or computers for their projects and prep-work.

 

Benefits of renting computers

Rentals allow you to source the latest up-to-date equipments at reasonable costs. You don't have to worry about computer maintenance or repair as the rental company will take care of all these for you. You also don't have to deal with the issue of disposing off equipment in an environmentally-safe way. Renting is a hassle-free, stress-free process and the best option for all your temporary technology needs.

 

If you are planning to rent computers, make sure you research different computer rental companies to determine which one offers the best value for money. Look for flexible rental plans and good technical support levels. You can ask colleagues, friends for recommendations or search for computer equipment rental providers online.

About the Author

For more information on computer rental, contact a technology professional at Vernon Computer Source. Visit to http://www.vernoncomputersource.com/monitor-rental find out more about renting monitors.

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Computer Crashing - How To Stop Your Computer Crashing On You

By: Brad Armstrong

When using the computer it won't be a pleasant experience to see it freeze or crash frequently. So it is necessary for you as a user to find what causes the computer crashes and how to optimize your computer and stop a computer crashing.

There are many causes to why a computer crashes suddenly while you are in the midst of doing something and each has its own solution. Below are the most common causes for computer crashes.

#1 Spyware or malware are running on the computer
As we all know, when there are malicious spyware and malware programs running on your computer, lots of valuable resources will be used up, which will cause your computer to run slowly and eventually crash. So to optimize your computer, it is vital to install correct anti-spyware software on your computer to block the potential danger presented to network security and stop a computer crashing.

#2 Infected by viruses
Similarly to Spyware or Adware, if a computer is infected by viruses, a large amount of system resources will be taken and then slow down the computer. Seriously, it will eventually crash the computer. Regularly scan your computer for viruses to always optimize your computer.

#3 Too many programs run at the same time
When a program is running, it will take some  system resources and memory. If too many programs run at once  a crash will occur because of limited memory. Close down other running programs as possible as you can but the one that you need currently, which will free up memory to ensure a smooth running of the program you do need and stop programs from starting up that you do not need. To do this you need to remove them from start up. If you do not know how to do this you need a system scanner to do this for you.

Besides the above causes, there are some other aspects which will result in computer crashes like registry problems, no disk defragmentation for a long-term usage or not enough memory. To resolve these problems download and run a system and registry scanner which will prevent this happening to you and stop a computer crashing. Click here to scan your computer now.

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Here is the #1 resource for a slow windows computer to speed up your computer now just click here

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computer running slow? Here Is How To Fix a Slow Computer Fast

By: Brad Armstrong

I am sure by now the way that your computer is acting is about to make you just toss it in the trash. Slow computer performance, unusual crashes and error messages are all plaguing you as you use your PC every day. Even just shutting down or bringing your computer back up can take countless minutes.

What makes it worse is that you have done everything you can think of to repair the problem. cleaned up your PC and got rid of old programs and files, ran a check disk to look for bad sectors on your hard drive, defragmentated your hard drive to organize all of your files and even scanned your PC with a antivirus program to stop your computer running slow.

So far everything has checked out and unless you find out what the problem is you feel you're going to have to resort to expensive technical support or even just purchasing a new computer outright.

Before you go and do anything else, have you checked the computers registry for problems? There are a number of problems that can be in a computers registry that can cause mild to severe symptoms and unless you know about a computers registry, you might end up making a expensive mistake trying to stop your computer running slow.

Simply put, the registry of a computer acts like a large file directory for your computer. Everything from where files are located to computer settings are all stored here so that when your computer needs to find information it needs, it can simply refer to the registry and find the location of the files or settings it needs to access.

Problems begin accumulating from the first day you start using your computer. As your computer accesses files, creates and deletes files, setting are changed small problems can begin to grow larger and more profound with time. Eventually when you computer goes to look up the location of a series of files it needs to run they are not located where the registry says they are. This is what causes the slowed performance and in other cases even blue screen errors and crashes and makes your computer run slow.

It is possible to manually clean and repair your registry, but it is not advised. Unless you know exactly what you are doing in there you may accidentally change information necessary for the proper operation of your computer and once you delete anythnig from the registry it is gone for good. There is no recycle bin for the windows registry.

The best option is to get yourself a system and registry scanner that will both accurately scan your computer and choose the proper actions to repair any issues you may have with just a few clicks of the mouse. Click here to stop your computer running slow now.

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Here is the #1 resource for a slow windows computer to speed up your computer now just click here

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Scope of Computer Science Engineering in the future

By: alok

This is the biggest question in front of everybody now a days while deciding the admission in the Engineering. And we here at The Central Polytechnic Private School of Tunisia will definitely answer this common question.

   

             As we will progress the scope of computer will only increase, there is no change of getting decrease of that. This recession only will come as an advantage for future generations because at the time of recession companies think new technologies as per the need. So it seems that the use of computer is decreasing but in actual practice the use of computers will increase in coming years and recession will play a important role in this scenario.

Being in recession people will come up with cheap software solution for large Industries as well as small scale industry. These demands will make the usage of computer even in the small countries of the world and We will be more self dependent and work towards the progress of Nation.

 

Computer science and engineering students will learn about basic engineering techniques, as other engineering students, during first year course. These techniques include Engineering Mathematics, Physics and Chemistry, and Engineering drawing. From second year they are exposed to core computer science subjects like programming, data structures, Digital logic, Theoretical computer science, Algorithms, Computer networks, Operating systems, Web technologies, Databases and Computer Architecture are few to mention.

This is really an excellent field to have opportunities both in software companies and higher studies. As computing is extensively applied to almost every walk of life it created massive jobs for Computer Engineering students. On the same time more demand and application kept it research funding alive attracting many students to opt for higher studies.

There are thousands of multinational and national software companies offer jobs to computer engineers. To name few famous, Microsoft, Google, Yahoo, Amazon, IBM, Facebook, Oracle, Cisco, Infosys, TCS, and Wipro.

The generalized use of computers has increased the demand of computer technician in areas such as finance, energy, medicine, business-management, online libraries, cable television, electronic mail, the new banking systems, traffic control etc.

The most frequent openings are:

• Civil Service
• Training and Teaching
• Research
• Freelance Work
• Programmer and Analyst
• Private Commercial Companies
• Private Industrial Companies
• Software Production Companies
• Technical Consultancy
• Computer Auditing
• Artificial Intelligence and new Technologies
• Analysis, Computer Management and Development Department

 

In General, These professionals work in all areas of business.

Professional Tasks:

The tasks carried out by computer engineers can be included in two different areas: Analysis and Programming. Some of these tasks would be:

• Ø  Directing Software and Development teams.
• Ø  Directing and managing computer projects.
• Ø  Designing, Managing and Creating computer systems and management tools for companies.
• Ø  Starting business on the internet.
• Ø  Designing and managing local, external and internal connection computer networks
• Ø  Designing and managing computer systems for industrial process control
• Ø  Running Computer Department
• Ø  Participating in research groups
• Ø  Doing Infrastructure maintenance
• Ø  Designing, selecting and evaluating the logics and computing infrastructure.
• Ø  Computer applications analysis
• Ø  Administrating advanced computer systems
• Ø  Integrating systems
• Ø  Managing and operating with information
• Ø  Teaching computer related matter

 http://polytechcentrale.tn

About the Author

By ALOK

Alok is freelance writer , web designer, programmer

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Remote Computer Support, the Best Mode for Computer Virus Removal

By: James Madison

Computer viruses spread from one computer to another and that interferes with the computer operation. A computer virus may corrupt or delete data permanently from the computer hard disk. But the tech support experts can provide you with virus removal assistance at really affordable prices.

 

The way a computer virus infiltrates your PC depends on the type of virus it is. All computer viruses have their own features and factors that make them unique and dangerous to the health of their computer. Due to many different types of computer viruses, it can be confusing at times to diagnose what kind of virus your computer is infected with. To make the identifying process easier, the tech support experts have listed three basic types of viruses that you will likely encounter. These computer viruses include: Trojan Horses, Worms and Email Viruses.

 

Trojan Horses: Trojan virus once on your system, doesn't reproduce, but instead makes your computer susceptible to malicious intruders by allowing them to access and read your files. This type of virus is extremely dangerous for your computer's security and privacy. According to the qualified technicians you should avoid downloading programs or files from the site if you are not positive of what the file or program does.

 

Worms: A worm multiplies itself by using computer networks. They usually attack multi-user systems and can spread over corporate networks via the circulation of emails. To protect yourself from worms, you should update your security patches. Operating systems and application vendors normally provide these patches. In addition, you should avoid opening email attachments from unknown senders.

 

Email Viruses: An email virus can automatically forward itself to thousands of people, depending on whose email address it attacks.  According to tech support experts, you should always check that your anti-virus is up-to-date. The tech support experts recommend installing Spam filter and Spam Blocker to block unwanted email viruses.

 

Computer viruses continue to make up a considerable and growing percentage of the cyber malware threat. Fortunately, most of the viruses are easily detected and dealt by the experts and effective methods for eliminating them are often developed as soon as the viruses are discovered. Once you consult a remote computer support, the qualified professionals run a complete scan of your computer and quarantine it. They also design a robust defense system for your precious computers and do not let the virus to sap the productivity of your computer.

 

The tech support experts can install and update your PC with the latest anti-virus software. They can scan your PC and laptop to detect any malicious virus, spyware and malware. This helps to restore the functionality of your system. They also set up a firewall in your system and safeguard your machine against the hackers of sensitive and personal information.

About the Author

For instant removal of computer viruses you can always seek the assistance of the computer support experts who are available at your service 24/7. There are many such computer repair services available in the market.

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Do you have a Slow Running Computer - How to Make Your Computer Run Faster Now

By: Brad Armstrong

It is very frustrating when you use your computer and you have to wait for a long time before it starts up and load its programs. There are many reasons why your computer is running slow and it is not what many people lead you to believe. The shocking truth is you do not need to buy a new PC and you can fix a slow running computer yourself. Here are some ways to make your computer run faster without wasting your hard earned money to fix a slow running computer.

#1 The hard disk is short on available disk space. Delete all temporary files in your computer and empty the recycle bin. All unnecessary and unused files should be deleted since these contribute to your computer running slow and remove anything you do not use or need.

#2 Upgrade your memory so it can meet recent memory requirements or uninstall programs that you do not need if you do not want to spend money on memory upgrades and having a technician install it for you.

#3 Another reason is that you have installed and uninstalled a lot of programs which leave behind bad or unwanted registry entries. This occurs over time but one day you will wake up and switch your computer on and will find you have a slow running computer that is moving at a snails pace. The reason for this is your registry may have become full of errors your computer to run slow. You can speed it up by using a system and registry scanner software to fix errors and speed up a slow running computer.

#4 Viruses and spyware could also make your computer run slow. Install an antivirus and anti spyware software in your computer to safeguard against these. Keep your antivirus and anti spyware software up to date to protect your PC.

#5 If you are in the unfortunate position where spyware has got past your antivirus software your computer may be sending and receiving unauthorized data. Having a simple windows firewall enabled can help to prevent this information leaving your computer without your knowledge.

Some spyware is specifically designed to grab financial data, credit card details and passwords and send them out of your computer without you even knowing about it.

The truth is that you can prevent this. If spyware and malware gets past your antivirus your firewall can help prevent it getting out but some spyware, trojans and malware can turn off both the firewall and antivirus software but there is one last thing you can do. Running a system and registry scanner can find this malicious software in the registry. No matter how hard it tries to hide it cannot run without an entry there and by removing this you can stop it before it steals all your financial information and leaves you broke.

Some shops will tell you the reason is that your computer is outdated and it may be time for you to buy a new one. The truth is they just want you to buy a new one. Following these tips and cleaning out your registry and running a system and registry scan can help you to save a lot of money and speed up your slow running computer in minutes. Click here to scan your computer now.

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Here is the #1 resource for a slow running computer to speed up your computer now just click here

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Slow Running Computer Fix - Get Your PC Running Fast again

By: Brad Armstrong

It is very frustrating when you use your computer and you have to wait for a long time before it starts up and load its programs. There are many reasons why your computer is running slow and it is not what many people lead you to believe. The  truth is you do not need to buy a new PC and you can fix a slow running computer yourself. Here are some ways to make your computer run fast  without wasting your hard earned money.

#1 The hard disk is short on available disk space. Delete all temporary files in your computer and empty the recycle bin. All unnecessary and unused files should be deleted since these contribute to your computer running slow and remove anything you do not use or need.

#2 Upgrade your memory so it can meet memory requirements or uninstall programs that you do not need if you do not want to spend money on memory upgrades and having a technician install it for you. The easiest way to do this is to download and run  a system and registry scanner to do this for you.

#3 Another reason is that you have installed and uninstalled a lot of programs which leave behind bad or unwanted registry entries. This occurs over time but one day you will wake up and switch your computer on and will find you have a slow running computer that is moving at a snails pace. The reason for this is your registry may have become full of errors your computer to run slow. You can speed it up by using a system and registry scanner for a slow running computer fix.

#4 Viruses and spyware could also make your computer run slow. Install an antivirus and anti spyware software in your computer to safeguard against these. Keep your antivirus and anti spyware software up to date to protect your PC.

#5 If you are in the unfortunate position where spyware has got past your antivirus software your computer may be sending and receiving unauthorized data. Having a simple windows firewall enabled can help to prevent this information leaving your computer without your knowledge.

Some spyware is specifically designed to grab financial data, credit card details and passwords and send them out of your computer without you even knowing about it.

The truth is that you can prevent this. If spyware and malware gets past your antivirus your firewall can help prevent it getting out but some spyware, trojans and malware can turn off both the firewall and antivirus software but there is one last thing you can do. Running a system and registry scanner can find this malicious software in the registry and in your computer and stop it working. No matter how hard it tries to hide it cannot run without an entry there and by removing this you can stop it before it steals all your financial information and leaves you broke.

Some computer technicians will tell you the reason is that your computer is outdated and it may be time for you to buy a new one. The truth is they just want you to buy a new one. Following these tips and cleaning out your registry and running a system and registry scan can help you to save a lot of money and speed up your slow running computer in minutes. Click here to scan your computer now for a slow running computer fix.

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Here is the #1 resource for a slow windows computer to speed up your computer now just click here

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Tips For Buying Computers

By: Halstat Pires

Today even the most "poor" computer can do that without problems and very low prices. If this is all you need and you do not have pretensions then any computer is helpful.

But if your requirements are greater, you want to edit media files, images, you need databases, you want to play the newest games... you have to think on a last generation computer. Even if technology progresses in a rapid pace, the acquisition of a top computer can help you save money in the future because it will face (up to a time) future software demands. Maybe one of the most active segments market sales of computers is a PC-gaming segment, for computer games. Crazy users spend hundreds of dollars for last generation graphical card and processors not just Dual-Core but Quad-core to get maximum performance. Do not be fooled, to play a game is not just a hobby, a passion for those who give you the money. Games industry worth billions annual.

But enough for now... let's talk about the computer components and see what you have to know when you want to buy a computer:

Processor

Like I said, using a computer for applications like internet, emails and documents do not require a performing computer. But if you want more, then the processor can do what you want.

At this point processor market battle goes between Intel and AMD, two American companies. In many tests Intel Core 2 Duo have proved better than AMD rivals as AMD Athlon 64 X2. Do not consider however that AMD processors are weak. It's just a situation of moment; not only once AMD was ahead of Intel. Anyways, in this case, Intel is in front of AMD, even both processors are dual-core (dual core - two independent processors connected in one circuit on the same silicon plate) so that processors that enable fast multitasking function through (several operations performed at the same time) with good performance for gaming and multimedia.

In case you still want a dual-core processor but do not have enough money for one of the top, you can find dual-core processors at lower prices but usually it falls in performance. Refurbished or used computers could be good options for a low budget.

It you are a game passionate, remember that even if a quad-core processor sounds great, one dual-core is definitely enough for most users. At this moment there are few applications that need quad-core processors and surely you will not use its full capacity.

Memory

Computer memory (an electronic component that retain information and instructions so the processor can access them quickly) is measured in capacity. If more memory is installed in your computer, the applications will run easily and the system will work better. Memory is an essential component of the computer, without it it will not work, reason for which come preinstalled. However, anytime can be added a new memory module that will increase the capacity and the operations speed.

Motherboard

A motherboard should be bought thinking at the future and of course, depending on the facilities that it offers. The second generation SATA connectors (which reached a transfer rate of 3 Gb / sec), high-definition sound on board, and even dual graphics card (SLI or CrossFire) can help a lot in present as well in the future.

A very appreciated motherboard is Intel "Skulltrail". Its configuration is: Dual-socket LGA 771 for procesors which support Penryn chips on 45nm technology and also supports four x16 PCI Express 1.1 slots, two PCI 2.3 slots, six SATA 3.0 ports and two eSATA ports.

BUT before buying a motherboard, consider all the components you would like to buy them, choose the desired configuration and then go shopping

Computer case

A good computer case could make your day better when you want to do an upgrade. It should let you add almost any type of new component, it should be easy to open and let you move the components and everything should be proper ventilated.

If you plan to keep your computer a longer period of time, leave room in computer case for future components. Let free slots for memory, one for another sound card etc..

The most common cases are ATX format. ATX specification not only indicate where you should connect the plugs on the back of the case but also show you what source to use.

You can find different shapes and formats as MicroATX, NLX, BTX (new format seems to replace ATX, supported primarily by Intel).

Video card (graphics card)

Video card is responsible for generating all images on the monitor and can be preinstalled on the motherboard or bought separately. Their main characteristics is power. The integrated graphics card typically use the system memory to operate, while the dedicated video cards use their own dedicated memory. For the vast majority of users, integrated boards are sufficiently advanced, however, if you want to run games, graphics and other multimedia programs, a dedicated video card is recommended.

If you already have a computer, before you go shopping, find out what type of card fits your system. Or, if you get a computer try to find a system that have PCI Express x16 slot for graphics card. Although there are still motherboards using the AGP and PCI slots, they are already the past.

Hardisk

The hard disk size has increased enormously in the last 12 months, the current size reaching from 160 Gb till 1 terabite (1000 Gb). If planning to store large amounts of data, then the higher, the better.

Today's most hard disks are Serial ATA and  they do have 7200 rpm; gamers will certainly appreciate the Raptor X 150GB hard disk at 10,000 rpm from Western Digital.

Monitor

It does not matter what it looks like, but what it does. Some things you should keep in mind when you buy a monitor: optimal resolution (at least 1024x768). For higher resolutions, you need a better video card. Remember this when you want to get a 30 inch monitor. Remember the distance to the monitor. It is not the old problem of cathodic tubes but that you must include the entire screen with his eyes when working at the computer, otherwise you eyes will get tired very soon (and health problems could also appear).

Most people use 17 "or 19" monitors. Another option would be a 22" monitor, especially because the price difference is relatively small compared to the 19"s.

All computers need an optical drive. Optical units are very different and could have multiple options. Unlikely that a new system will have incorporated less than a DVD-ROM (read discs but not write); but most systems have a DVD-RW dual-layer multiformat (read and write / rewrite CD / DVD). Look for DVD units that can write dual-layer DVDs and offers the option LightScribe Direct Disc for labeling (can burn a disc with a label).

The highest quality range of computers have Blu-ray Disc and HD DVD units. But the price is rather high (three or more from a DVD-RW).

USB devices are growing in popularity and today come to rival DVD thanks to the advantage of mobility and increased life time.

Network card

Today, the Internet is part of our daily life. Any new computer has incorporated an internal network card. If you want something more, try a router or gateway.

Sound card

In the office, the integrated sound card is probably more than enough. At home, you'll probably want surround sound which will require a performing sound card. Prices are not high so there will be no problem to find and buy. Do not forget that for a quality sound you need and a wet set of quality speakers too.

The new systems offers quality sound because they already have integrated sound cards with outputs of 7.1, 24-bit (32-bit internal processing) and sound of 192-kHz.

Keyboard and Mouse

The current trend is to use a wireless keyboard and mouse, but still there are a lot of systems using the USB ports. The keyboard can be simple with only basic functions or a real machine with lot of buttons worthy of Star Trek. Today the most known is optical (uses a small camera to detect motion and provide a much better movement).

Operating System: Linux, XP or Vista?

For those who doesn't even consider to use an operating system based on Linux, I advise you to think again. Yes, there are many options to be developed in Linux, but the same it's true for Windows too. Linux interface has become comparable to that of Windows (for example, try the Ubuntu distribution on ubuntu.com).

Windows XP is the best selling operating system. Most applications were built especially for it, drivers for the components have been written, so on...If you can, use Windows XP, but soon will be out for sale. But do not forget to update it often. Being the most  purchased system, it's the most attacked too. And he has its own problems some even serious. Remember to buy an antivirus, spyware and use firewall.

Windows Vista is a step forward regarding security features including more and better than XP. It's cool as design, but also eats a lot of resources. Unfortunately for Microsoft, Vista, which was supposed to be a replacement for XP failed in its goal to make its users happy.

So, are you ready to buy a computer? Before you leave for shopping, take one more minute and read the tips below:

Look at the warranty and support offered: most problems occur (if they appear) in the first year, so one year warranty should be enough. Moreover, the better.

Do not buy additional software if you do not need them. Buy the computer operating system (if you decided to Windows), a suite of office applications and an antivirus (free antivirus you can find on the internet. AVG or Avast are good choices).

About the Author

(ArticlesBase SC #3597748)

Article Source: http://www.articlesbase.com/ - Tips For Buying Computers

Importance of Computer and Laptop Repair

By: Herrywillson

Computer and laptop falls under one of the most basic necessities at home or in your workplace. Just a click and you are connected to everything. There's a huge need today for technical assistants to assist with online Computer and laptop Repair, because they are enough knowledgeable to analyze different problems with a computer even if it's remote.

Importance of computers in our daily lives cannot be ignored. We sit on our computers and laptops for long spans due to different distinguishing reasons. But frequent occurring computer problems and technical defaults can break your concentration, where troubleshooting computer can be a headache for most of us who don't posses any technical knowledge.

If computer and laptop stop working because of technical errors you always get in trouble, and how to solve these technical errors related to your computer and laptop is a big deal.

Certified technical specialists and help desk support experts are online available to eliminate any problems or issues just by using a remote computer access. The technician provides user guidelines that must be performed either through the website itself or by giving it using phone for conversation.

A remote connection is more convenient nowadays for the users during their busy days for computer and laptop repairs and it will let you spend just a few minutes to figure out the problems and solutions with regards to your computer.

Online services are available 24/7 to troubleshoot anything about why your hardware or software is not running like it used to be. You just need to follow some procedures given to you by them. Online computer repairs are cost efficient and non time consuming.

Instant solutions are provided by remote computer repair or laptop repair. You do not only save time and effort by going to the nearest computer technician, you also have the chance to know how you can troubleshoot the next time your computer has the same issues again.

Once you move to local computer repair shops then you will think about online computer support resources and will get to know that why online computer support is attracting the attention of computer enthusiasts with their proven expertise and knowledge.

Multiple reasons are there due to which popularity of remote computer support model has been increasing rapidly. The prior supportive reason is its reasonable and much cheaper on-site tech support, which saves travel time and cost of fuel as for even minor issues you need to take your computer or laptop to the repair center.

Online computer support is available 24×7 and all through the year, just required to dial the number of the service provider. And to avail online computer support it is required to pay very small amount for enjoying state of the art diagnostic and troubleshoot service for hassle-free computing.

Online services provide you with every kind of computer services like computer and laptop repair, PC maintenance, networking solutions, and several other IT enabled services. Online services are exclusively advantageous for small businesses which cannot afford to hire a full fledged IT department.

About the Author

Support Mart ensures availability of online technical support 24 hours a day and seven days a week just by click of a mouse and provides all sort of supports for operating systems, virus removal, PC scan, computer peripheral, Microsoft support, email setup, PC software etc. To know more about online PC repair and technical support with their nominal packages log on to http://www.supportmart.net/

(ArticlesBase SC #3600118)

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Disadvantages of Computers in the Classroom

By: Katie Criss

To start the most significant fact that should be stated is that the computer is a tool, and as with any educational tool, from books to crayons, it can be used to enhance the curriculum and promote learning, but it can also be misused and abused. In this essay, I will discuss the disadvantages of having computers in the classrooms due to the misuse and the abuse of this tool.

I found it hard to find research that had been done on this topic because not only is the research on the effectiveness of computers in the classroom scarce but the research that is there is often done by software companies and therefore may be biased. (Emmans 2001). Even though there is no clear-cut answer to the question of a computer being a friend or foe in the classroom, having an unsolvable question of good or bad brings many issues to light. For example, the fact that much of the software designed for children is appealing to them. If nothing else, it at least holds the children's attention. Though this may seem like a positive characteristic, consider this, just because a television show holds your attention, does it necessarily educate you? The answer to this is simple, maybe some do, but certainly not all do, mostly they are just simply entertaining. This causes me to raise an eyebrow at some, not all, software. As a teacher, one must not use time-fillers, cause a child can watch television or play on a computer at home, but as a teacher, we must educate, and if there is no educational value in the software, what good is it for a teacher? On the defense for teachers, another reason for computers being a shortcoming is that sometimes the software is not obvious that it is non-educational. This can be a common mistake of any educator, being fooled that a product could be educational when it is merely entertainment software dressed up in an educational costume aimed at these gullible teachers.

According to Cindy C. Emmans (2001), a professor of Educational Technology at Central Washington University, on software in the classroom...

" Often feedback is the key to learning, and computers are appealing because this feedback can be immediate, which is of course a very effective learning tool. Unfortunately, this feedback is not often as effective as it might be, perhaps because it is not easy to return to the original question to try again, or the student must begin at the beginning to review the original content rather then backing up a step or two. In some cases, the feedback for the wrong answers is more appealing than that for the right answer, causing students to try and get the wrong answer simply for the entertainment value".

Gerald W. Bracey sums it up adequately in a journal article called Principal by basically saying that the bells and whistles are all there, but the education is not, because it was not produced by someone who understands how children learn. (1996, p.6).

More arguments in the research area continued in September of 2000, the Alliance for Childhood published a statement against the use of computers in schools. More than 85 experts in various fields including psychiatry, education, and philosophy signed the statement in which calls for a suspension on the promoting introduction of computers into the nation's elementary schools until there is a more careful assessment of their effect (Hafner, 2000). Another influence in opposition to computers in classrooms is that of Jane Healy, an educational psychologist and the author of "Failure to Connect," a book criticizing educational applications of computers. Thomas Crampton interviewed Mrs. Healy and she declared that computers "can hurt children's personal skills, work habits concentration, motivation, (and) the development of social skills" (IHT, October 2000, p. 19).

Another reason that computers in the classroom would prove to be a disadvantage is the availability of computers in the classroom to each individual student. It is rare to find a school that, in each classroom, has a computer supplied for each student. This then brings up the problem of scheduling and rotating the students to the computers available. (Tiene 2001) This begins a whole new ball game in which you are now consuming a lot of time in which could be used for more productive measures rather then scheduling computer time for each student. If this is the case, and only a specific amount of students can be on the computer at one time, then you are dividing your classroom, and not integrating it, as it should be. This causes many difficulties in teaching a whole group instruction, which leads to problems in skill development, since the attention of some students is lacking. (Tiene 2001). On the Colorado state education web site (2003), I was able to find questions that were asked to teachers regarding computers in their classrooms. The teachers were asked, "What do you find unattractive about teaching in a computer based classroom?" The one teacher commented that, " Students have a tendency to come in a print out their papers at the beginning of class instead of coming into class with a hard copy..." Another teacher said, " Technological difficulty, your whole lesson could be shot for the day if the computer would go down". When the teachers were asked about the difficulties they faced themselves and with the students due to computers in the classroom, they answered, " It is hard to get the students attention when they are on the computers." Another teacher commented, " There are times that I send them to work and instead they are interacting with each other." Another teacher stated her fear of the computer classroom by saying that, " Students are at their own screens, they're in their own little world, and they are not talking to their classmates, sometimes I think that they don't even know half the names of all the people in their class." (Barnes 2003) I feel that these teachers comments are very important when looking at the issue of computers in the classrooms, because these are the people that actually interact with the children in the classroom, they are not just some random research study by a software company, these people are the real thing, and they see how computers are effecting their classrooms.

Another issue of computers in the classrooms regards the child's health. If a child were to be functioning on a computer for a long interlude of time or with incorrect positioning they will inadvertently obstruct their own health, some problems caused from this include muscular-skeletal injuries and vision problems. (MacArthur & Shneiderman, 1986).

Another issue concerning computer use in classrooms is that a lot of teachers have not been trained to use a computer, and many do not know how. An enormous amount of time would have to be consumed for the teachers to learn both the hardware and the software of the computer. They also would need time to collaborate with other teachers. Time is something that many teachers spend planning lessons and the weekly events of their classroom. The other problem that was just mentioned was the training of the teachers. Some educators do not have local training options available to them. Some do not have the time or money to spend on it. Another issue is that even if a teacher does go through training, there are always unsuspected things that can go wrong with a computer. If a teacher were to base their whole lesson on a computer, and it were to crash, and the teacher just being minimally skilled in using computers, would not be able to fix the system so that they could continue their lesson. (Tiene 2001).Therefore an on-site technology expert would be needed on site at all times in case any of these incidences would happen, and quite frankly I do not think that there are too many school districts looking for another expense. Another reason for computers being a disadvantage in the classroom is that if the computer is Internet accessible, if this is the case, then the children can be exposed to Internet content that is not appropriate for their age level. They can also be exposed to child predators, which is a huge concern in today's world. Though this may seem far-fetched it truly is not in an article published on the gurdian angel websitein 2000 states, "The facts are plain. Children are being targeted, solicited, and made victims by pedophiles. What do the ratios or statistics matter? Isn't even one too many? These predators range from the simple minded closet pedophile who has surfaced because they believe they are safely anonymous behind their account alias, to the highly organized and skilled child pornography rings that operate predominantly off of US soil, behind quick discard web sites, and anonymous re-mailers, pushing their hideous wares for big profits. Have you ever heard of a child being molested or kidnapped in your hometown? Don't you teach your kids to watch for certain things and, not to talk to, or go anywhere with, strangers for just that reason? This is our point. Just as there are real world lessons that you teach your children, there is a necessity to teach them cyber-world lessons. " (Hook, 2000). To put this quite simply, are you sure that your child is being watched very closely when accessing the Internet at school? It sure would be hard for one teacher to keep a close eye on each individual student in the classroom when they are all accessing the Internet at the same time. Therefore are you, as a parent or a teacher, really quite sure that a computer is necessary to learn in school? I mean, didn't you, the parent or teacher, learn in school without the computer? I agree that learning the latest technology is a necessity, but I do not agree with using computers for classes like mathematics or reading. To sum it all up, Computers in the classroom lacks research of it being an advantage in the classroom. Computers in the classroom may not provide the students with the proper education that they need if the software being used is not adequate. Computers may not be, depending on the school, made available to each student. The attention of the students is harder to get when they are on the computer. An inexperienced teacher in the technology area may cause many problems in the classroom, and consume valuable time that could be used to educate. Most schools do not provide an on site technician in case a difficulty may arise. The children's health may be affected by long-term use of the computers, and probably the most frightening one is that these children can be exposed to child predators and unfiltered inappropriate content through the web while they are in school and in their classrooms presumed to be receiving their education.

About the Author

Katie Criss is a graduate with a dual degree in Early Childhood Elementary Education, who enjoys writing and wants it to be seen! Also enjoys doing research and saving money!See this Authors Research by clicking here

(ArticlesBase SC #17549)

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The Growing Need for Computer Financing

By: Kevin Darvisten

Computers and Information Technologies are as ubiquitous in our lives today as the air we breathe. Computers have led to a third information revolution taking its place alongside agricultural and industrial revolutions. We see computers everywhere, in Desktop PC's, PDA's, cars, washing machines, ATM's - everywhere. The resulting multiplication of humankind's intellectual strength has affected our daily lives and also changed the way in which we search for new knowledge and resources. At a steady rate of around 11%, the last decade has seen an unprecedented boom in the computer industry - and nearly everyone is being affected by the phenomenon. This unprecedented growth rate has led to amazing technological progress since the inception of electronic computing in late 1940's. By way of comparison, had the transport industry kept pace with the computer industry, today we could travel from coast to coast in about few seconds for roughly few pennies. Of course in almost any case, growth can lead to growing pains. In the case of the computer industry, the expectation that nearly everyone has a computer leads to the need for nearly everyone to own a computer.

The Internet as a Computer Sales Driver

The advent of the internet has certainly spurred on the success of the computer industry. The increase in the number of internet users worldwide has grown from 274 million in 1999 to 605 million in 2002 with a staggering growth of 119 percent. In the US alone, the number of Internet users has increased by 53 million (16 percent) with a penetration of 52 percent. The percentage of total population in the world with internet access has increased from 7 percent 1999 to 9 percent in 2002.

Explosive Growth In Computer System Sales

During the past 5-6 years, there has been explosive growth in the number of PC buyers - not only in developed countries like the United States and Europe but also in the Asia Pacific and other regions of the world. In fact, the Chinese computer industry grew a whopping 38 percent in 2004 almost dwarfing our growth rates of the United States , which has been 35.2 percent over the period of 1990-2000. Worldwide growth in the sales of Personal Computers has increased from 394 million in 1999 to 550 million in 2002. Total numbers of PC's in US are 178 million which accounts for 62 percent penetration in US households. As an example, in the United States 625 people have PC per 1000 inhabitants. This high ratio is in contrast to the percentage of the total world population where only 9% of people have a personal computer. However this has been a radical increase from 1999 when only 5 percent of the world population had personal computers. Because of this explosive growth, the market competitors, in anticipation to tap this highly growing market are keeping their prices at rock bottom and producing in huge volumes thus effectively maintaining their profit levels despite of low margins.

Computer Financing to the Rescue

While this unparalleled growth is a benefit, there are unintended consequences. One unexpected effect of this explosion in technology is that with the expansion of the availability of computers, the individual need for a computer system is also increased. In a world where it is assumed that everyone has access to a computer and an internet connection, it is becoming increasing difficult to succeed without these resources. As this need increases and computer prices decrease, the only missing component is a catalyst to push computer ownership to the "tipping point". Enter computer financing; now with very little cash and low monthly payments, many individuals can purchase a very powerful computer system and level the playing field for themselves in the workforce. With this increasing demand for cheap computers that are actually cutting-edge high-performance machines, a computer loan can bridge the gap between needing and having a computer. Companies like My Computer Club offer computer financing for those with bad credit thus enabling those who would normally not be able to purchase a computer to have a powerful computer system.

About the Author

My Computer Club offers information on computer buying and offers financing on brand new computer systems. Stop by our site at My Computer Club to check out our helpful articles and financing on brand new computer systems.

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Compare Prices Find The Best Computer Accessory

By: Amporn Saechin

Accessories Here you can find the best computer accessory for your laptop, monitor, printer, scanner, speaker, projector, hardware and more. laptop accessory compaq laptop battery compaq laptop battery charger compaq laptop computer ... Large main compartment features a padded laptop computer pocket, accessory pockets, mesh disk pockets, and ample room for business papers. Right here you can find the best laptop, monitor, printer, PDA, computer component and accessory.

Rack enclosure, enclosure accessory, enclosure accessories service, accessory enclosure, computer rack accessory, accessory 19 rack, ..... So, you can do better than just searching for accessory computer gift by taking advantage of this very special hosting solution. If not, Click here to return to your search for accessory computer gift We hope we helped with accessory computer gift. Large main compartment features a padded laptop computer pocket, accessory pockets, mesh disk pockets, and ample room for business papers. We have every computer accessory to meet your corporate or small business needs. We were unable to find results for your search term - "accessory comparison computer price".

Price ranges for computer accessories vary depending on which computer accessory you are looking for, manufacturer, total functions, and speed. To make sure you are purchasing the correct computer accessory, please look to see if your Notebook is compatible with the accessory. To make sure you are purchasing the correct computer accessory, please look to see if your Computer Book Notebook is compatible with the accessory. Connect the digital camera and computer via a USB connection cable (included in the camera accessory kit). When ready, connect your computer and camera by the USB connection cable included in the camera accessory kit.

Right here you can find the best laptop, monitor, printer, PDA, computer component and accessory. Accessories Here you can find the best computer accessory for your laptop, monitor, printer, scanner, speaker, projector, hardware and more. Buy computer accessory, computer equipment, computer game, computer hardware, computer software, computer supply, computer power supply, computer system. manufacturer scsi dvi usb lan mp3 y cable ieee1394 adaptor accessory computer cable computer peripheral power cord 3d-multimedia ..... Membership of Melb PC is probably the best accessory you can buy for your personal computer. ...laptop accessory compaq laptop battery compaq laptop battery charger compaq laptop computer ... A wireless accessory eliminates the necessity of punching holes through walls or furniture to link computers and peripherals.

I have a accessory computer desk furniture! Our computer accessory shop has everything you could need at cheap prices, so begin your online shopping now. Now you can compare prices from all the major manufacturers by searching for each computer accessory. http://www.accessory-computer-store.com/

About the Author

Amporn Saechin is Webmaster The Compare Prices Find The Best Computer
Accessory - Quickly and Easily! http://www.accessory-computer-store.com/

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Guide to buying a desktop computer

By: Andrew Gates

With the rapid pace of technological developments, nothing has become as ubiquitous as the computer. Everyone's got one. And they are used for all manner of endeavour, by people of all walks of life. So, do you simply buy the computer that someone's selling? Or do you do some homework and figure out what detailed specifications are going to make some difference to you?

At Myshopping.com.au you can compare the prices of a wide range of different computers from different vendors and of different specifications. This guide will help you find what you're looking for.

Mac or Windows (PC)

At the outset, you need to decide what you are going to use the computer for. This will help you make the fundamental decision of whether you should go Mac or PC. Although, with the advent of the dual core processor (an Intel chip now used by Mac) the differences are narrowed a little, there are still some choices that can help you favour one system over another. Historically, Mac computers have a reputation for greater stability that comes from a more robust operating system than Windows based computers. Largely for this reason, Macs have been the computer of choice for the graphic design industry, the music production industry and the video production industry. This has prompted the software manufacturers to make professional software packages for these disciplines that favour the Mac operating system. Although they have packages supporting the Windows operating system, they are often less capable.

Consequently, if you are engaged in these industries and need your computer for this type of work, you should consider Mac. Mac computers appear to attract fewer viruses and software malfunctions than do Windows based PCs. On the down side, there has always appeared to have been limited software support for Mac systems.

Another decision that may guide your choice is the aesthetics of the computer. If you have limited available space, there is nothing quite like the iMacs or the mini Macs for space saving. iMac's all-in-one desktop units are compact and complete with all the connectivity you need. However, the look of other brands may be more to your taste, with many models available in compact packages and modern colour schemes to suit practically all dÊcor. Now that you've made that basic decision, you can start comparing the apples with apples.

The Components of Your Computer

The two factors that determine the price of your computer are size (yes it does matter) and speed. Either or both of these two dimensions are a factor of practically every component that makes up the machine. Naturally the highest price tags go with the combination of biggest and fastest.

CPU

The heart of the computer is the CPU (central processing unit). You need to decide which CPU you want driving your computer. These come from different manufacturers, and the current development of the technology is called Dual Core, which means that there are two processors on the one chip. Dual Core technology delivers more performance with less energy requirements. Intel and AMD are the two leading CPU manufacturers, and they offer different products under different names.

Current processing speeds range from about 1.4 GHz (gigahertz) through to 3.46 GHz. But it is not simply just a matter of speed. There are other considerations. Mac Operating Systems have a different architecture to Windows and will perform many functions faster with a slower speed CPU. A dual core chip at 1.4 GHz will deliver a better performance that a Pentium 4 chip at 1.8 GHz. A 1.4 GH dual core chip running a Mac with OSX Tiger, will perform better than a 2.0 GHz Pentium 4 processor running Windows. You need to decide what you want your computer to do, what your major software requirements are before you decide on the CPU processor.

However, for everyday use, a processor faster than 1.8 GHz will deliver excellent performance. As a rough rule of thumb, choose a Celeron for low cost computing, a Pentium 4 for mid-range budgets, or an AMD Athlon for bigger budgets. You can compare computers based on Pentium, Celeron, Athlon or Dual Core CPUs by searching those specifications on Myshopping.com.au and finding different vendors and brands using different processors.

RAM

This is where bigger definitely means better performance. RAM is the system memory that enables the computer to use its programs and swap data between the hard drive and the program functions. It's important to match the speed of the RAM of your computer with the speed of the CPU. The more RAM you have available for your programs to work, the faster will your computer run. Most computers today come with at least 256 M (megabytes) of RAM. But memory is a relatively cheap component, and it costs little extra to upgrade to 512 M or greater.

HARD DRIVE

The hard drive of the computer stores your program files and your data. As computers have advanced, so has the need for more capacity to operate programs and store data. People working in media fields tend to work with very large files and require large storage space. Most computers in today's market come with a minimum of 40G of hard drive space. However, this can be upgraded (usually in 20G chunks) to as much as 200G or more. The effectiveness of your hard drive also can depend on its physical speed (5400-7200 RPM) and the speed at which it can transfer data between the computer's RAM and the hard drive. Faster means better performance.

REMOVABLE MEDIA

You will want to have a CD-R or (CD-RW) drive installed in your computer, and or possibly a DVD or DVD-R. For reading a CD ROM, all that is required is a CD drive and for watching DVD movies, a DVD ROM drive. However with a CD-R drive, you can record your own data and music CDs, and with a DVD-R drive, you can burn files in a DVD format, allowing you to store movies and data in far greater quantities. The CD-RW (DVD-RW) drives allow you to use re-recordable media. Your decision will depend on what you want to use your media drives for and what you want to store.

Other removable media will possibly include flash card storage, which is usually plugged in via the USB ports on the computer.

MONITORS

The monitor for your computer is integral to its function and aesthetics. If you are working in graphics you may want to stay with a CRT monitor. However most bundle offers these days are supplied with LCD monitors, which have the advantages of smaller space requirements, use lower energy and offer wider screen images. However they generally are more expensive (although prices are dropping everyday), can frequently be not as bright, have limited viewing angles and sometimes require a digital interface connector.

For graphics intensive work, LCD screens do not have the same capacity to render colours in gradients as CRT monitors. Once again, size matters. Bigger screens cost more than smaller ones.

VIDEO AND SOUND

For a detailed explanation of video cards, please see the article on Myshopping.com.au dedicated to Video Cards.

The interface between the CPU and the Monitor is provided by the video card. One of the basic decisions you need to make is whether you require a 3D or 2D card. Video cards come in two different types: those that use an AGP (accelerated graphics port) on the computer motherboard and those that use the PCI bus. Data transfer rate is critical to video performance. Faster video cards use an AGP, and this proves a faster data transfer than PCI cards. Most video cards also have their own video memory installed on the card, a feature that increases a computer's memory performance. Today, these memories are often 128M or 256M, and can be more in the higher-end cards dedicated to sophisticated video work or gaming. Video cards performance is also affected by what is known as clock speed or clock rate, cards with a faster speed offer faster performance.

Cheaper computers, and laptops and notebooks, have an integrated graphics chip included in the motherboard instead of a discrete video card. This type of configuration is not as powerful or as fully functional as having a separate video card, which can allow more comprehensive gaming, the use of multiple monitors and faster and better rendering of images.

For a computer to reproduce the sounds recorded in games, movies and music products it requires a sound card. Quality of sound can be affected by the sound card your computer has installed. It's important that you know how you want to use the sound reproduction processes of your computer. If you are a musician and want to record audio, then you will want to be sure that you have excellent connectivity, good midi access and at least 16-bit (CD quality) audio reproduction. Sound cards give you the possibilities of full cinema surround sound, and the many subtle effects employed by high-end games.

Nearly every computer comes with a set of stereo speakers. However it pays to have a good listen to what you're buying. Make sure you listen to program that you are familiar with (take your own CD along) and compare the sound in a quiet environment. Many speaker systems for computers have poor frequency response and are underpowered. For desktop use that does not involve a quality listening environment this may be satisfactory. But if you want to listen to music and watch movies for the full effect, then you need to consider buying a good quality set of speakers. Use the search facility of Myshopping.com.au to compare specifications and prices of different speaker systems.

KEYBOARD AND MOUSE

The choice of keyboard and mouse are personal choices. Sometimes it depends on what you do on your computer, whether you have formal typing skills or whether you're a two-finger hack. Serious writers may prefer an ergonomic keyboard. Keyboards frequently have different clicks and responses to others. You may prefer an infrared cordless keyboard and mouse. You may prefer an optical mouse on which you don't have to clean the rollers. Optical mice have no rollerball, and can be used on most flat surfaces, but they are more expensive.

CONNECTIVITY

Today, connectivity is everything. Your computer can have wireless connections to all of your peripherals: printer, scanner, and other computers. Having an onboard modem will only be really important if you are using a dial up internet connection. Broadband modems tend to be peripherals and you can connect via USB, wireless or firewire. It does pay to consider how you will connect to the internet and other peripherals. It's not always convenient to get behind your computer to plug something in or unplug it. Some sound cards have a front face panel with all the connections you need. The USB ports on Macs are conveniently located. Many PC manufacturers haven't caught on to the fact that it's important for some people to easily access the connections to their computers.

To compare the different bundle offers from different brands, and to compare the different components by their specifications, search the Myshopping.com.au database for exactly the specifications you are seeking. You can compare prices and vendors, and order what you need online with a few clicks.

About the Author

Andrew Gates is a writer for comparison online shopping site MyShopping.com.au. MyShopping.com.au helps you compare the different computers from different brands in terms of specifications and accessories. You can also compare prices from hundreds of different brands and vendors.

(ArticlesBase SC #37631)

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Computer Tips and Help: Buying a New Computer? Think "local"!

By: Mr. Modem

Technology has advanced so much during the past few years that any entry-level computer is going to have more than enough "horsepower" for the average computer user. So the days of being concerned about the size of the hard drive and speed of the processor have pretty much passed into history. RAM (memory) is still vitally important so I would not recommend any new system with less than 512MB. 1GB is even better; and if you've got your eyeballs set on the full, bells-and-whistles version of Windows Vista, 2GB will warm the cockles of Mr. Gates' heart.One topic I always encourage when giving out computer tips and help to shoppers is to purchase locally, if at all possible. Virtually every community has one or more reputable computer shops that build computers. There are many advantages of purchasing locally as opposed to going through mail order or online through Dell, Gateway, HP, Compaq, etc. First and foremost, service is generally outstanding. A retailer that builds your computer will typically provide extraordinary service and support for all your computer problems, answers them in a timely manner, and realizes that their future business depends on their reputation within your local community.I usually purchase two new systems a year, each one built for me by a local computer builder/retailer. I've experienced first-hand through the years that if I have computer problems, answers are found quickly, with minimal or no "down" time, no 800-number calls to Banglagore, no bureaucracy, no messages that let me know how important my call is, only to advise me that my approximate waiting time is 37 minutes.In addition, many local computer builders will deliver and install your new system. Some will even copy data from your old computer to the new; and some will include an hour of training so they can show you how to use the CD-DVD burner or answer any questions you may have. But the primary benefit is cultivating a relationship with a local computer builder/repair service so that you'll always have someone to turn to if a problem arises.If you purchase your new PC from a local retailer/builder, there's also the benefit of keeping your hard-earned dollars right there within your community. You'll be supporting the tax base while at the same time supporting your local merchants. How good is that?If you're not sure who to go turn to for your new system, start making some inquiries; talk to friends, ask at local computer clubs for computer tips and help, and check the Yellow Pages and the business section of your newspaper. Keep asking and you'll discover that there are always one or two names that continually come up.Another advantage of having a computer built for you is that you can get exactly the system you want. Or, if you're not sure what you want, you can discuss with the builder how you use your computer and benefit from the builder's suggestions and recommendations.When you purchase off-the-shelf or online from a national outfit, your brand-new system will generally arrive loaded with all kinds of software that you'll probably never use. The first time you connect to the Internet, many of those programs will automatically register with their respective vendors which will open the door to pop-ups and nag screens galore, all inviting/harassing you to sign up for a variety of services, upgrades, etc., which creates unnecessary computer problems. Answers to any issues like this will always be to buy locally. I've never understood the philosophy behind loading up a new computer with gratuitous software. To me, that's like buying a new car that the dealer then drives for a thousand miles under the pretense of testing it out for you. By the time you get it home, it's a used car! Why accept a new computer with a hard drive that's already infested with software that you'll never use and probably never even know what it's for?When I purchase new computers, the only thing I permit to be installed is Windowsthough these days I prefer dual-boot Windows/Linux systems. This gets rid of many computer problems, answers all my questions about what was installed on my computer, and allows me to pick and choose what I want installed. By only permitting the operating system to be installed, and whatever drivers or programs are necessary for any peripheral devices I might purchase, I know I've got a squeaky clean hard drive and anything that gets installed on that computer will be installed by me. Doing this also ensures that I'll never look at my Programs or other folders and scratch my head wondering, "What's that program?"Another one of my computer hints, tips and recommendations is if your computer builder normally installs a plethora of programs, review a list of programs beforehand and tell the builder which ones, if any, you want installed. It's your computer; you should decide what's installed or not. Once I setup my new computer, then I'll install a few of my favorite 'can't-live-without-'em' programs, and I'm good to go. You'll find a list of Mr. Modem's Favorite Programs in my Web-based Library.Last, but not least, when purchasing a new computer, tips and help I always give out is to obtain the original Windows installation CD. Some of the big-boy retailers won't include the installation CD or will place a 'restore utility' on a drive partition, which serves no useful purpose if you experience a drive failure. Obtaining the original Windows installation CD is rarely a problem with local computer builders. In most cases, it's automatically included, but it never hurts to mention it, just to be sure. If you ever need to reinstall Windows or if a file becomes corrupted, or if you need to reinstall a component, you're pretty much out of luck unless you have the original Windows installation CD.Nationally syndicated columnist Mr. Modem delivers helpful, easy-to-understand computing tips and prompt, personal, plain-English answers to subscribers of his weekly newsletter. For additional information or to subscribe, visit www.MrModem.com. © 2006 Get-the-Net, Inc.

About the Author

Mr. Modem

(ArticlesBase SC #62028)

Article Source: http://www.articlesbase.com/ - Computer Tips and Help: Buying a New Computer? Think "local"!

The Next Generation Of Computers Is Quantum Computers.

By: Jason Roberts

Taking the Quantum Leap

While it may seem that the evolution of computers is about at its end, that is not the case. The next generation of computers is quantum computers.

The reason behind continuing computer evolution is the continuing thirst we have for speed and capacity of our computers. Way back in 1947 an engineer and computing expert, Howard Aiken, predicted that all the United States need to satisfy its need for computers were six digital electronic computers. Other scientists and engineers that followed Aiken added to the volume they predicted as being adequately massive, but were also far too conservative.

What none were able to predict that scientific research would produce voluminous quantities of knowledge that needed to be computed and stored, nor did they predict the popularity of personal computers, and the existence of the Internet. In fact, it's hard to predict if humankind will ever be satisfied with its computer power and volume.

A basic computer premise, called Moore's Law, says that the number of a microprocessor's transistors doubles every 18 months and will continue to do so. What this means is that by no later than 2030 the number of microprocessor circuits found in computers will be astronomically high. This will lead to the creation of quantum computers, whose design will use the power of molecules and atoms for processing and memory tasks. Quantum computers should be able to perform specific calculations billions of times more quickly than can the current computers that are based on silicon.

Quantum computers do exist today, though few and they're all in the hands of scientists and scientific organizations. They are not for practical and common use - that is still many years away. The theory of quantum computers was developed in 1981 by Paul Benioff, a physicist with the Argonne National Laboratory. Benioff theorized going beyond the Turing Theory to a Turing machine with quantum capabilities.

Alan Turing created the Turing machine around 1935. This machine was made up of a tape whose length was unlimited and which he divided into small squares. Each square either held the symbol one or the symbol zero, or no symbol at all. He then created a reading-writing device that could read these zero and one symbols, which in turn gave these machines - the early computers - the instructions that initiated specific programs.

Benioff took this to the quantum level, saying that the reading-writing head and the tape would both exist in a quantum state. What this would mean is that those tape symbols one or zero could exist in a superposition that could be one and zero at the same time, or somewhere in between. Because of this the quantum Turing machine, in contrast to the standard Turing machine, could perform several calculations at once.

The standard Turing machine concept is what runs today's silicon-based computers. In contrast, quantum computers encode computer information as quantum bits, called qubits. These qubits actually represent atoms that work together to act as a processor and as the computer's memory. This ability to run multiple computations at one, and to contain several states at the same time, is what gives quantum computers the potential to be millions of times as powerful as today's best supercomputers.

Quantum computers that have 30 qubits would, for example, have processing power equal to today's computers that run at a speed of 10 teraflops (trillions of operations per second.) To put this in perspective, the typical computer of today runs at gigaflop speeds (billions of operations per second.

As our cry for more speed and more power from our computers continues, quantum computers are predicted to be a readily available product sometime in the not so distant future.

About the Author

Robert Michael is a writer for nhmxservers.com which is an excellent place to find Computer links, resources and articles. For more information go to: Computers Resourses

(ArticlesBase SC #70573)

Article Source: http://www.articlesbase.com/ - The Next Generation Of Computers Is Quantum Computers.