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IBM Personal Computer User Manual

IBM Personal Computer
318 pages
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16K-64K System Board Switches
To use the following switch setting charts, your system
should have no
"B"
stamped
on
the rear panel,
and
the
system board should have 16KB-64KB
CPU
printed
on
the side.
~
The switches
on
the system board are set as shown
in
the figure below and
on
the following pages. These
settings are necessary for the system to address the
attached devices and to specify the amount
of
memory
on
the system board.
Two types
of
DIP switches are installed
on
the system
boards and option adapters. Set a rocker switch
by
pressing down the rocker
to
the desired position. Push
a slider switch
to
the desired position.
Warning: Before you change any switch settings,
make a note
of
how the switches are presently set.
Switch
Block
1
rODDDDDDD
Switch
Function
1,7,8 Number
of
5-1/4
inch diskette drives
installed
2
Coprocessor
3,4
System
board
memory switches
5,6 Types
of
displays attached
5-8
Switch Settings

Table of Contents

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IBM Personal Computer Specifications

General IconGeneral
ManufacturerIBM
ModelIBM Personal Computer 5150
Release Year1981
ProcessorIntel 8088
Clock Speed4.77 MHz
RAM16 KB - 256 KB
GraphicsMDA or CGA
Power Supply63.5 W
Weight21 lbs (9.5 kg)
Storage5.25-inch floppy disk drives, optional 10 MB hard drive
Operating SystemIBM PC DOS
PortsParallel, Serial, Cassette

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