Voice Input (Voice Recognition terminal)
It consists of a keyboard and display device and ear piece or phone with interface which responds to known voice command patterns.
Computer
LIGHTPEN
It has a light sensor at its writing tip. It receives information from the screen and feeds it back into the computer memory
JOYSTICK
(i) It is used to enter data into the computer. (ii) It is mainly used when playing games.
SCANNERS
Scanners are of two types, which include: (i) a small and cheaper (hand held) one that is run over the image. (ii) One that looks like a photocopier in which you put the image that is to be scanned into the scanner, the same way you operate your photocopiers. USE: Both are used to input …
THE MOUSE
(i) It is like the remote control of your home TV (ii) It has about two buttons on the top and connects o your PC’S system unit. (iii) It moves a pointer on the screen as we move it on a pad near the computer. (iv) It is through such movement that commands are sent …
KEYBOARD
The original PC keyboard had 83 keys and later between 84 and 88 keys. The latest in keyboard design (standard keyboard is 10 1/102 keyboard that provides several additional features, extra function keys and a new keyboard layout. The standard keyboard has the letter in the order of QWERTY layout. Across the top of the …