System Unit
The main component
of
your IBM Portable Personal
Computer
is
the system unit.
It
accomplishes all of the
processing and controlling operations for your system
through a set of instructions called a program. The
IBM Portable Personal Computer comes with the
programming language, "IBM BASIC," already
installed, and most programs are written in that
language. However, you also can write programs for
your IBM Portable Personal Computer in several other
IBM supported programming languages. Although a
reference manual for IBM BASIC is included with your
system unit, prior knowledge
of
general programming
concepts
is
very helpful for writing programs for your
IBM Portable Personal Computer. In addition, various
program packages are available at your Authorized IBM
Personal Computer Dealer to satisfy a variety of your
business and personal needs.
The system unit stores data
on
the diskette drive using
an operating system, such as the IBM Disk Operating
System (DOS). IBM DOS allows the system unit to
store and retrieve data from the diskette drive. The
DOS
reference manual and the IBM
BASIC
manual
explain the commands needed to store or retrieve data.
If
you choose to write your own operating system, the
IBM Personal Computer XT
Technical Reference
manual
(PIN
6936808) will be helpful in providing the
necessary information.
System Unit
3-5
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