Types of Computer Input Devices
Author: stanfordclinton
A Computer Input Devices is anything that sends data to the computer. Without any input devices, a computer would only be a display device and not allow users to interact with it, much like a TV. To the right is a Logitech trackball mouse, an example of a type of input device.The first input devices were punch cards and later keyboards. They now include mice, Web cams and digital cameras.
A barcode reader or scanner also known as a point of sale (POS) scanner are hardware devices capable of reading a barcode and printing out the details of the product and/or logging that product into a database so a company can easily keep track of its inventory
A type of camera that stores the pictures or video it takes in electronic format instead of to film. There are several features that make digital cameras a popular choice when compared to film cameras. First, the feature often enjoyed the most is the LCD display on the digital camera. This display allows users to view photos or video after the picture or video has been taken, which means if you take a picture and don't like the results, you can delete it; or if you do like the picture, you can easily show it to other people. Another nice feature with digital cameras is the ability to take dozens, sometimes hundreds of different pictures. To the right is a picture of the Casio QV-R62, a 6.0 Mega Pixel digital camera used to help illustrate what a digital camera may look like.
Digital cameras have quickly become the camera solution for most users today as the quality of picture they take has greatly improved and as the price has decreased. Many users however are hesitant in buying a digital camera because of the inability of getting their pictures developed. However, there are several solutions in getting your digital pictures developed. For example, there are numerous Internet companies capable of developing your pictures and send you your pictures in the mail. In addition, many of the places that develop your standard cameras film now have the ability to develop digital pictures if you bring them your camera, memory stick, and/or pictures on CD.
A computer input device that was invented by Douglas Engelbart in 1963, who at the time was working at the Stanford Research Institute, which was a think tank sponsored by Stanford University. The mouse allows an individual to control a pointer in a graphical user interface (GUI). Utilizing a mouse a user has the ability to perform various functions such as opening a program or file and does not require the user to memorize commands, like those used in a text-based command line environment such as MS-DOS. To the right is a picture of a Microsoft IntelliMouse and is an example of what a computer mouse may look like.
The Mouse was originally referred to as an X-Y Position Indicator for a Display System. Xerox later applied the mouse to its revolutionary Alto computer system in 1973. However, because of Alto's unfortunate success, it was first widely used in the Apple Lisa computer. Today, a pointing device is found on virtually every computer.
To find computer input devices or any Laptop Notebook Accessories, Online Marketplace is a good choice.
Source by http://blog.topons.com/index.php/2010/08/types-of-computer-input-devices/
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