Extended Functions
The keyboard routine does its own buffering. The keyboard
buffer
is
large enough
that
few typists will ever fill it. However, if
a key
is
pressed when the buffer
is
full, the key will be ignored
and the
"bell"
will sound.
Also, the keyboard routine suppresses the typematic action of the
following keys: Ctrl, Shift, Alt, Num Lock, Scroll Lock, Caps
Lock, and Ins.
Keyboard
Layouts
The IBM Personal Computer keyboard
is
available in six different
layouts as shown
on
the following pages:
•
French
•
German
•
Italian
•
Spanish
•
UK
English
•
US English
4-12
83-Key
Keyboard