IBM PCjr

Introduction
This section shows you how to use your IBM PCyr
keyboard to operate your IBM PCy'r.
When you press a key, your keyboard sends a message
to
your IBM PCyr. The program you use tells your IBM
PCyr what to do with that message. For instance, when
you are playing a game, your "J" key may make a frog
jump. But when you are using a program to write a
letter to your friend, that same key simply types the
letter "J".
Keyboard 3-3