Keyboard

Keyboard is the most common, familiar and most important input device. It looks like a typewriter. It has got various keys, which are used to give data and commands to the computer. Commonly, we use a standard QWERTY keyboard with letters arranged in the same order as those on a typewriter.

            The most important thing to watch out is the keyboard connector. If you build an ATX system, you'll need one with a DIN connector.

             A typical computer keyboard contains all letters, numbers, symbols of a regular typewriter, plus other keys which may include.

Number Keys: These are used for numerical calculation. It contains 0 to 9 and some numerical operators like +, - , *, / etc.

Functions keys to (F1 – F2): There are used to perform a set of calculation (mostly to give the commands to commands to the computer) by a single keystroke.

Special Key: The special keys are used to specific tasks. Some of the special keys are Enter, Backspace, Del, ALT, CTRL etc.

Enter: It is of the most important key on the keyboard. It is used to change the paragraph and to write the short text. It is also used to enter into the selected computer program by pressing it once.

Backspace: It is used to delete one character to the left of cursor.

Del: It is used to delete one character to the right of cursor. It is also used to delete the computer items.

Shift:  It is used to capitalize the letters and write upper printed characters on every key.

ESC: It is used to close the dialog boxes and also to terminate the running process.

ALT: It is used to activate the menu bar and to close the current window with the help of some other keys. It also used to define shortcuts for the computer application.

Ctrl: Mainly it is used for shortcut keys to perform specific task inside the computer programs. It is also used to define shortcuts.

Win Key: It is used to activate the START button.