IBM Personal Computer User Manual

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(16KB-64KB CPU) System Board
16K
Total
Memory
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System
Board
Switches
12345678
Switch
Block
1
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32K
Total
Memory
Switch
Block
2
1
2345678
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.......
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System
Board
Switches
Switch
Block
1
I;DDQ~DODD
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Switch
Block
2
r;~~~~~Q~Q
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~
_.
.......
~
System
Board
Switches
48K
Total
Memory
1234567
B
Switch
Block
1
mD~~DDDD
Switch
Block
2
1
2345678
;~~~~~~~~
=-
~
rI1
64K
Total
Memory
System
Board
Switches
Switch
Block
1
,
2345678
mD~~DDDD
Switch
Block 2
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IBM Personal Computer Specifications

General

Manufacturer	IBM
Model	IBM Personal Computer 5150
Release Year	1981
Processor	Intel 8088
Clock Speed	4.77 MHz
RAM	16 KB - 256 KB
Graphics	MDA or CGA
Power Supply	63.5 W
Weight	21 lbs (9.5 kg)
Storage	5.25-inch floppy disk drives, optional 10 MB hard drive
Operating System	IBM PC DOS
Ports	Parallel, Serial, Cassette