computer applications

Input Devices- what is keyboard- what is mouse- what is scanner- what is Fingerprint Scanner- what is Track Ball – what is Retinal Scanner- what is light pen- what is Optical Character Reader- what is Bar Code / QR Code Reader – what is voice input system- what is Digital Camera – what is touch screen- what is keyer- what is 10 input device in computer

(1) Keyboard: Keyboard (wired / wireless, virtual) is the most common input device used today. The individual keys for letters, numbers and special characters are collectively known as character keys. This keyboard layout is derived from the keyboard of original typewriter. The data and instructions are given as input to the computer by typing on […]