IBM 5150 Manual To Operations page 41

Introduction
Within this section are instructions enabling you to start using your
",.-..., IBM Personal Computer. This section contains an explanation of the
Power-on Self-test that identifies your IBM Personal Computer is
ready for use. This section also provides a graphic layout of the
keyboard and each key function.
If your IBM Personal Computer has an 80 CPS Matrix Printer or
a 5W' Diskette Drive, this section will be a handy reference when
getting started and a quick reminder in the future.
As you become more proficient in using your new IBM 80 CPS
Matrix Printer, you will find the ASCII code chart a valuable tool
for accessing the many control, graphic and special character set codes.
If you purchased the IBM Personal Computer Disk Operating System
(DOS), the pages in this section teach you how to use many of the
DOS commands. For example, you will learn how to format and
make backup copies of diskettes. This part of Section 3 will also
( \ guide you through running the SAMPLES program which is supplied
on the DOS diskette. Instructions are also provided here for
running Disk BASIC and Advanced BASIC programs.
Operations 3-3