IBM 5155 User Manual

3 Set the Power switch on the system unit (and
expansion unit,
if attached) to Off.
4 Set the Brightness and Contrast controls fully
clockwise.
Contrast
5 Turn the Vertical Size control fully
counterclockwise. A black area should appear
across the top and bottom
of the screen. r"..
-----===--
,-~
o
Vertical Size
Control
9000-2 Test
January 1984

IBM 5155 Specifications

General

Model	IBM 5155
Category	Desktop
Release Year	1984
CPU	Intel 8088
Clock Speed	4.77 MHz
Display	9-inch monochrome CRT
RAM	256 KB, expandable to 640 KB
Storage	One or two 5.25" 360KB floppy disk drives
Graphics	CGA (Color Graphics Adapter)
Ports	Parallel, Serial, Keyboard
Operating System	IBM PC DOS
Weight	30 pounds (13.6 kg)