Introduction - Zenith Z-100 Reference Manual

Introduction and Specifications

Introduction

This manual is designed with the programmer in mind. It contains useful informa-
tion about the Z-100~ PC series of IBM PC XT-compatible Zenith Data Systems
Computers.
Here you will find information about the hardware in these computers and how
to use the system Read-Only Memory (ROM) to gain the best performance in
your machine and assembly language programs. This manual is designed to sup-
plement the information in the Programmer's Utility Pack, a software package
that contains a screen editor and the assembly language utilities associated with
MS-DOS. Also, as part of this manual set, the iAPX 88 Book from Intel is induded
to provide you with a complete, comprehensive, description of the Intel 8088
and its instruction set.
Since most of the information here is concerned with programming the Zenith
personal corn puters, you will notice that there is little information about the circuitry
of those machines. For more information on the technical aspects of the Z-100
PC Series Computers, a comprehensive set of service manuals is available from
Zenith Data Systems. These service manuals go beyond the simple servicing of
your computer, including complete circuit descriptions as well as data sheet reprints
of the more complex integrated circuits that are used in these Zenith personal
computers.
~Z-100 is a trademark of Zenith Data Systems.
Chapter 1