THE KEY BOARD PERFORMS VARIOUS FUNCTIONS SHOWN BELOW.
F1 - F2 (Function keys) - Used to perform that depend on the software being used.
ENTER OR RETURN - Used to execute on instruction or data being in through the keyboard.
CAPS LOCK - Used for keying in capitalized alphabets.
SHIFT - Capslock off: If pressed simultaneously with a character key , a capitalized alphabet input.
- Capslock on: It reverses the above effect.
- Also used to input the upper symbols for keys with two symbols or characters on them
CTRL, ALT - Pressed with other keys ,they input special messages to the computer.
BACKSPACE - Used to erase the character to the left of the cursor position.
NUM LOCK - Used to activate numeric keys on the numeric keyboard.
CURSOR KEYS - Used to move the cursor in the direction indicated.
HOME - Used to move the cursor to the left end of the current line.
END - Used to move the cursor to the end of the current line.
PAGE UP - Used to move the cursor up one page or one screen.
PAGE DOWN - Used to move the cursor down one page or one screen.
INSERT - Used to insert characters at the current cursor position.
DELETE - Used to delete characters at the current cursor position.
ESC - Depends on the application. usually used to cancel a command.
PRINT SCREEN- Used to print whatever is displayed on the screen,
SCROLL LOCK- Used to allow scrolling in a documents.
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FIG 1.SYMBOLS |
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