IBM Personal Computer User Manual

These three responses tell you that the POST has
successfully completed. Other information
will
appear on the screen and it is not important at
this time. If you have a diskette drive and/or a
printer (that you turned on), you will also hear
and see responses from these; ignore these
responses at this time.
Remember an error message will appear on your
screen if the system unit
is turned on before the
expansion unit, if you have an expansion unit
installed. To recover, turn off the power to
all
devices then set the Power switch on the
expansion unit to On, then turn on the system
unit's power.
If the responses were not correct, or if your
screen
is not similar to the figure below, refer to
"Problem Determination Procedures."
The IBM Personal Computer Basic
Version CX.XX Copyright IBM Corp XXXX
XXXXX Bytes free
OK
1 LIST 2RUN 3LOAD" 4SAVE 5CONT 6LPTI '7TRON 8TROFF 9KEV OSCREEN
Getting Ready 3-7

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