IBM 5150 Technical Reference page 6

Preface
r""'\. This publication describes the various units of the IBM Personal
Computer; and the interaction of each.
The information in this publication is for reference, and is
intended for hardware and program designers, programmers,
engineers, and anyone else with a knowledge of electronics
and/or programming who needs to understand the design and
operation of the IBM Personal Computer.
This publication consists of two parts: a system manual and an
options and adapters manual.
The system manual is divided into the followirig sections:
Section 1, "System Board," discusses the component layout,
circuitry, and function of the system board.
Section 2, "Coprocessor," describes the Intel 8087
coprocessor and provides programming and hardware
interface information.
Section 3, "Power Supply," provides electrical input/output
specifications as well as theory of operation for the IBM
Personal Computer power supply.
Section 4, "Keyboard," discusses the hardware make up,
function, and layout of the IBM Personal Computer keyboard.
Section 5, "System BIOS," describes the basic input/output
system and its use. This section also contains the software
interrupt listing, a BIOS memory map, descriptions of vectors
with special meanings, and a set of low memory maps. In
addition, keyboard encoding and usage is discussed.
Section 6, "Instruction Set," provides a quick reference for the
8088 assembly instruction set.
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