IBM 5150 Hardware Reference Manual

•
•
IBM Monochrome Direct Drive Interface
and Pin Assignment
REAR PANEL
9 PIN "0"
SHELL CONNECTOR ~
o
1 • • 6
•
•
: • 9
· e·C3lW-~~
o
~ 0~
PARALLEL
PRINTER
ADAPTER
At Standard TTL Levels
Ground
1
Ground
- 2
Not Used 3
IBM
IBM
Monochrome
Not Used 4
Not Used 5
Monochrome
Display and
Display
....
+ Intensity 6
Parallel Printe
.,
Adapter
....
+ Video 7
""
....
+ Horizontal 8
""
....
- Vertical 9
""
NOTE: Signal voltages are 0 - .6 Vdc at down level
+5 Vdc at high level
2-44

IBM 5150 Specifications

General

Processor	Intel 8088
Clock Speed	4.77 MHz
RAM	16 KB - 256 KB
Manufacturer	IBM
Model	5150
Release Year	1981
Storage	5.25-inch floppy drives
Graphics	MDA or CGA
Operating System	IBM PC DOS
Ports	Cassette, keyboard
Expansion Slots	5