IBM PCjr

Shift Mode
There are two shift keys on your keyboard. In the Shift
mode, all keys type in uppercase.
To put the keyboard into the Shift mode, press and hold
either Shift key and then press the key you have chosen
to work with it.
The key you have chosen must be pressed while the
Shift key is held down.
Shift mode ends and Regular mode returns when you
remove your finger from the Shift key.
When you first turn your IBM PCjr power on, the IBM
Personal Computer BASIC Message Screen appeared.
Using this screen and the following instructions try your
keyboard.
Keyboard 3-15