Keyboard
is the most common text-based input device. Computer keyboards are similar to
electronic typewriter keyboards with additional keys. The keyboard is used
to enter (type in) letters,
numbers and other characters.
Most keyboards have between 80 and 110 keys.
The keyboards used by us are also
known as QWERTY keyboards because
the first six typing keys on the top row of letters spell QWERTY. The
QWERTY keyboard was designed in the 1800s for mechanical typewriters and was
actually designed to slow typists down to avoid jamming the keys on mechanical
units. Let us learn about the keys on a keyboard.