THE NUMERIC KEYPAD
It usually located on the right
side of the keyboard. Looks like an adding machine, with its ten digits (0 to
9) and mathematical operators (+, -, * and /). The Numeric keypad also has a
Num Lock Key.
Num Lock:
1. When Num Lock is
deactivated, the numeric keypad‟s keys perform cursor movement control and
other functions.
2. When Num Lock is activated,
the numeric keypad‟s keys perform their functions of using digits and
mathematical operators.
THE FUNCTION KEYS
The keys are usually arranged
in a row along the top of the keyboard, these are twelve in number from F1 to
F12. Each Function key‟s purpose depends on the program we are using. For
example, F1 is the help key.
THE CURSOR-MOVEMENT KEYS
These help the users to move
around the screen by changing the position of cursor. Most keyboards include
the following standard cursor-movement keys:
Arrow Keys:
These are four in number and
labeled by arrow pointing in a specific direction.
1. These keys move the cursor
up or down a single line, or left or right one character space.
2. Their behavior can be
modified by using Shift and/or Crtl keys, depending on the
program we are using e.g. to
move a greater distance or to select text for editing.
1. We maybe able to press Home
to move the cursor to the beginning of the line and End to move the cursor at
the end of the line.
2. Used with the combination of
modifier keys, Home and End may move the cursor greater distances.
Page Up/Page Down:
They let us “flip” through a
document, screen by screen like turning the pages of a book.
1. Press Page Up to jump to the
previous screen. Press Page Down to jump to the next page.
2. Their function maybe
affected by modifier keys, depending on the program we are using.
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