IBM F50 RS/6000 7025 - Manual (Page 33)

With the mouse buttons, you can perform functions such as selecting and
deselecting options, extending your selection, or choosing a command. The precise
function of your mouse depends on the software you are using.
The mouse has a cable that plugs into the mouse connector at the rear of the
system unit.
Handling the Mouse Correctly
For best operation, handle the mouse with care. Incorrect handling can damage the
mouse.
Do not:
Operate the mouse on cloth, unfinished wood, newspaper, or carpet.
Drop or hit the mouse.
Carry the mouse by holding onto the cable.
Expose the mouse to extreme temperatures or direct sunlight.
Place the mouse in liquid spills.
Chapter 2. Using the System Unit 2-7