Chapter 1 13
4
Volume control/Mute
knob
Controls the speaker volume. Turn it clockwise or counterclockwise to
adjust the volume. Press it to toggle between mute and sound.
5
Scroll Lock
[
When activated, the screen moves one line up or down when you press
the up arrow or down arrow respectively. Take note that
[may not work
with some applications.
6
Num Lock
]
When activated, the keypad is set to numeric mode, i.e., the keys function
as a calculator (complete with arithmetic operators such as +, -, * and /).
7
Cursor keys
Also called arrow keys, let you move the cursor around the screen. They
serve the same function as the arrow keys on the numeric pad when the ]
is toggled off.
8
Application key
Opens the applications context menu (same function as clicking the right
button of the mouse).
9
Windows logo key Start button. Combinations with this key perform special functions, such
as:
• Windows + Tab: Activates the next Taskbar button
• Windows + E: Explore My Computer
• Windows + F: Find Document
• Windows + M : Minimize All
• Shift + Windows + M: Undo Minimize All
• Windows + R: Displays Run dialog box
10
Caps lock
@
When activated, all alphabetic characters typed appear in uppercase
(same function as pressing
j + <letter>).
11
Function keys
Access most of the computer's controls like screen brightness, volume
output and the BIOS utility.
No. Component Description
