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Optional Devices
This section describes the optional IBM devices that you can attach to the
5371 System
Unit.
IBM 5277 Mouse and Locator Pad
Figure 20.
IBM 5277 Mouse and Locator Pad
The
IBM
5277 Mouse and its
locator pad
(Figure 20) enable you to
position
the graphics cursor on the screen without
using
the keyboard.
When
the
mouse is moved across the locator pad, it senses changes in its
position
and
sends coordinates to the work station.
These
coordinates are
used
to
position the graphics cursor on the screen.
The mouse has three action keys, of which two can be assigned functions by
application programming.
The mouse attaches by way of a thin, flexible cable to the
keyboard
adapter
card of your system
unit.
Note: You cannot have the mouse and the tablet (see below) attached to
the system
unit
at the same
time.
32
Introducing the IBM 3270 Personal Computer/G and /GX Work Stations
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