IBM Personal Computer User Manual

When the Print Screen key is pressed along with the
Shift key, a copy of the screen presentation
is printed.
If the information on the screen is alpha/numeric
characters, as in a program listing, a duplicate of the
information is printed.
If the information is a graphic
representation, it can
be reproduced only on a printer
that supports graphic printing, such as the
IBM
Graphics Printer.
[[EJ]]
The Backspace key moves the cursor one position to
the left. The character to the left of the cursor
is
erased.
When entering data into your computer, be aware that
the number zero
(0) and the letter 0 are not
interchangeable.
Keyboard 3-15

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