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রবিবার, ১৩ সেপ্টেম্বর, ২০১৫

computer keyboard



A keyboard is the set of typewriter-like keys that enables you to enter data into a computer and other devices. Computer keyboards are similar to electric-typewriter keyboards but contain additional keys. External input device used to type data into some sort of computer system whether it be a mobile device, a personal computer, or another electronic machine .There is no standard computer keyboard, although many manufacturers imitate the keyboards of PCs. There are actually three different PC keyboards: the original PC keyboard, with 84 keys; the AT keyboard, also with 84 keys; and the enhanced keyboard, with 101 keysIn addition to these keys, keyboards usually contain the following keys: Page Up, Page Down, Home, End, Insert, Pause, Num Lock, Scroll Lock, Break, Caps Lock, Print Screen.

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