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There are normally three responses:

indication

the memory test will appear in the

upper-left comer of your screen. The number

should continue to increase until it equals the

amount

memory installed in your system.

Note: The Xs

will equal the amount of memory

installed.

XXX

B One short beep should

heard.

Introduction

1-17

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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)