IBM Personal Computer User Manual

UI
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l
1/'1
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System Board
Switches
1 -
64/256K
option
with
192K
installed
1 - 32K option
1 -
64/256K
option
with
128K
installed
1 - 64K option 1 - 32K option
480K
Total
Memory
224K
+
256K
on System Board
Switch
Block 2
Switch
Block 1
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64/256K
Option
Card
Switches
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li~Q~~Q~QQ
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64K
Option
Card
Switches
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1
32K
Option
Card
Switches
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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