Keyboard is an input device used to enter letters, numbers, and commands into a computer or electronic device. A keyboard has a layout and keys that are suitable for different languages or needs.
Main Parts of a Keyboard
1. Alphanumeric Keys:
- Letters (A-Z) and numbers (0-9).
2. Function Keys:
- The letters F1 to F12, used for special commands in various programs.
3. Control Keys:
- Examples: Ctrl, Alt, Shift, Caps Lock.
4. Navigation Keys:
- Arrow Keys, Home, End, Page Up, Page Down.
5. Numeric Keypad:
- For entering numbers and calculating according to program parameters.
6. Special Keys:
- Examples: Enter, Spacebar, Backspace, Tab, Escape (Esc).
Keyboard Types
1. Mechanical Keyboard: Uses switches or sheets to transmit signals.
2. Membrane Keyboard: Uses an electronic substrate for typing.
3. Virtual Keyboard: Keyboard digitally displayed on the screen.
The keyboard is an essential tool in using computers and many types of devices for data entry and commands.