Preface

This Technical

Information Manualprovides information for

the IBM PC 300GL Types 6268, 6278, and

6288. It is

intended for developers who want to provide hardware and software produc

these IBM

computers and provides an in-depth view

of how these IBM computers work. Us

publication

should have an understanding of computer

architecture and programming concepts

Related publications

In

addition to this manual, the following IBM publications provide information related to

IBM

PC 300GL.

ŸPC 300GL User Guide

This

publication

contains

information

about configuring,

operating,

and

maintaining

the

PC

well

as installing new options in the PC 300GL. Also included

are

warranty

information,

ins

for

diagnosing

and solving

problems,

and information on

how

to obtain

help

and

service.

ŸUnderstanding Your Personal Computer

This online document includes general information about using computers and detailed inf

about the features of the PC 300GL.

ŸAbout Your Software

This publication (provided only with computers that have IBM-preinstalled software) con

information about the preinstalled software package.

ŸHardware Maintenance Manual

This publication contains information for trained service technicians. It is available

http://www.ibm.com/pc/us/cdt/hmm.html

on

the World

Wide

Web, and it can also

be order

To purchase a copy, refer to

the

"Getting

Help,

Service, PCand300GLInformation"User

section i

Guide.

 

 

 

 

 

ŸCompatibility Report

This publication contains information about compatible hardware and software for the

available at http://www.ibm.com/pc/us/cdt on the World Wide Web.

ŸNetwork Administrator's Guide

This publication contains information for network administrators who configure and servic networks (LANs). Look for this publication at http://www.ibm.com/pc/us/cdt on the World W

Terminology usage

Attention:

The termreserveddescribes

certain

signals,

bits,

and registers

that

should

not

b

Use of reserved areas can cause compatibility problems,

loss

of

 

data,

or

 

permanent

d

hardware. When

the

contents

of a register are changed,

the state of the reserved

When

 

possible,

read

the register

first

and

change only

the

bits

 

that

must

be

change

In this manual, some signals

are

represented

in

a

small, all-ACK-capital). A minus-lettersignformatin

(

 

 

front of the signal indicates that

the

signal

 

is

active

low. No

sign

 

in

front

of

the

s

signal

is

active

high.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The

use

of

thehextermindicates

a hexadecimal number. Also, when

numerical

 

modifiers

such

as

“M”

and

“G“

are

 

used, they

typically indicate

powers

of

2,

not

powers

of

 

10.

For ex

1 024

 

10

 

 

MB

equals

1 048 576

 

20

 

 

GB

equals

1 073 741 824

30

).bytes

(2

 

 

 

bytes ),(21

 

bytes), and(2 1

 

 

 

 

vi

Copyright IBM Corp. September 1999

Page 5 Page 7
Page 6
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IBM 6288, 6268, 6278 manual Preface, Related publications, Terminology usage, Ibm
Page 5 Page 7

6278, 6268, 6288 specifications

The IBM 6278, 6288, and 6268 are part of IBM's extensive lineup of mid-range computers, specifically tailored for business environments in the late 1980s and early 1990s. These systems were designed to handle substantial data processing tasks, facilitating efficient business operations with robust performance and reliability.

The IBM 6278 was notable for its high-performance capabilities, making it suitable for a variety of applications ranging from transaction processing to complex computations. One of the main features of the 6278 was its multiprocessing capability, which allowed it to run multiple tasks concurrently. This was achieved through a combination of advanced hardware and software that optimized performance and resource allocation.

Similarly, the IBM 6288 was recognized for its versatility and scalability. This system incorporated enhanced memory management and was capable of handling larger workloads than its predecessors. The 6288 was designed with user-friendly interfaces and supported various input/output devices, making it easier for organizations to integrate into existing IT infrastructures. Additionally, it provided improved connectivity options, essential for modern networking needs at the time.

The IBM 6268, on the other hand, offered a balance between cost and performance, appealing to smaller businesses or those with less intensive data processing requirements. Despite being less powerful than the 6278 and 6288, the 6268 still managed to include essential features such as reliable data storage, effective processing speed, and compatibility with IBM's extensive software ecosystem.

All three models utilized IBM's proprietary operating systems, which were well-known for their robustness and security features. They were built with technologies such as error detection and correction, ensuring the integrity of data processing tasks. The architecture of these systems also allowed for easy upgrades, enabling businesses to expand their capabilities without a complete overhaul of their IT infrastructure.

In summary, the IBM 6278, 6288, and 6268 represented a significant advancement in mid-range computing technology during their era. Their main features encompassed multiprocessing, scalability, and user-friendly interfaces, making them valuable assets for businesses seeking reliable and efficient computing solutions. These systems laid the groundwork for future innovations in business computing, and despite their age, they remain a significant part of IBM's legacy in the computing industry.
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