IBM Personal Computer User Manual

Introduction
In this section are instructions to help you to start using
your IBM Personal Computer. The controls and
adjustments for the IBM Monochrome and Color
Displays are discussed. This section also provides a
graphic layout of the keyboard and each key.
You will notice as you begin this section that the system
performs a power-on self test, or POST. This occurs
each time you turn
on your IBM Personal Computer.
Operations 3-3

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