IBM Personal System/2 50 - Page 52

Shutdown
Status
Byte
(Hex
OOF):
This
byte
is
defined
by
the
power-on
diagnostic
programs.
Diskette
Drive
Type
Byte
(Hex
010):
This
byte
indicates
the
type
of
diskette
drive
installed.
Bit Function
7-4
First
Diskette
Drive
Type
3-0
Second
Diskette
Drive
Type
Figure
3-17.
Diskette
Drive
Type
Byte
3-20
Model
50
System
Board
—
October
1990