Microsoft Office Tutorials and References
In Depth Information
Computer Hardware
All personal computers are equipped with a pointing device. The most popular is a
mouse , such as the ones shown in Figure 8; notebook computers are usually equipped
with one of the other options pictured in Figure 9.
Figure 8
Personal computer pointing devices
Mouse with a cord
Cordless mouse
Figure 9
Notebook pointing devices
Track point
Touch pad
A touch pad is a touch-sensitive
device. By dragging your finger
over the surface, you control the
on-screen pointer. Two buttons
equivalent to mouse buttons are
located in front of the touch pad.
A track point is a small eraser-
like device embedded among the
typing keys. To control the on-
screen pointer, you push the
track point up, left, right, or
down. Buttons for clicking and
double-clicking are located in
front of the spacebar.
The pointing device controls a pointer , a small arrow or other symbol, on the display
screen. Using a pointing device is an important skill because most personal computers
depend on such devices to select commands and manipulate text or graphics on the
screen. People with physical impairments or disabilities can also use pointing devices
because of recent advances in making computers accessible to everyone. For example,
people who do not have the use of their arms can use adaptive pointing devices to control
the pointer with foot, head, or eye movements.
Computers used for presentations often feature remote input devices, sometimes called
wireless pointers , that work like the remote control used for a TV, VCR, or DVD. The
remote input device allows you to control the pointer from the back of the auditorium.
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