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Unformatted text preview: vertical scrolling and the left and right keys are used for
horizontal scrolling of the contents displayed on the terminal screen.
4. Special Function Keys. The keyboard also has a set of special function keys, each
one of which is labeled with the type of function it performs. Some of the most important
keys that belong to this set are:
- Enter. Is used to send keyed-in data or a selected command to the memory.
Shift. Is used to enter a capital letter or one of the special characters above the
numbers. This is achieved by pressing the Shift and the corresponding character keys
Ctrl. Is used in conjunction with other keys to expand the functionality of the
keyboard. For example, just as the Shift key is used with an alphabet key to enter the
alphabet in capital letter, Ctrl key is also used with another key to give a key new
meaning. The exact functionality in this case depends on the software being used.
Alt. Similar to Ctrl key, this key is also used in conjunction with other keys to
expand the functionality of the keyboard.
- Backspace. Is used to move the cursor one position to the left and delete the character
in that position.
- Tab. Is used to advance the cursor to the next user-defined tab position, which is the
location where the user wants to enter the next data.
- Caps Lock. Is used to toggle (alternate/switch) the capital letter lock feature on and
off. When this feature is "on", all letters entered from the keyboard are entered as capital
- Num Lock. Is used to toggle the number lock feature on and off. When this feature is
"on", numbers are entered when you press the numbered keys on the numeric keypad.
- Home. Is used to move the cursor to the beginning of the work area, which may be
the beginning of the line, screen or document depending on the software being used.
- End. Is used to move the cursor to the end of a work area.
- Delete. Is used to delete the character at the cursor position.
- Page up. Is used to...
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- Spring '14