Preface
The IBM PC Convertible Technical Reference consists
of
two
volumes. Volume 1 describes the hardware design
and
provides interface information for the IBM PC Convertible.
Volume 1 also has information about the basic
input/output
system (BIOS)
and
programming support. Volume 2 contains
the
BIOS listings.
The information in these volumes is both descriptive
and
reference-oriented
and
is intended for hardware
and
software
designers, programmers, engineers,
and
other interested
persons who need to understand the design
and
operation
of
the IBM PC Convertible. These users should be familiar with
the use
of
the IBM PC Convertible
and
understand the
concepts
of
computer architecture
and
programming.
Volume 1 has five sections:
• Section
1,
"Introduction" is
an
overview
of
the system
and
the available options.
• Section
2,
"System
Unit"
describes each functional part
of
the base system. This section also contains the description
of
the interfaces. Programming considerations are
supported by
command
code
and
register descriptions.
• Section
3,
"System Options" describes each available
option.
• Section
4,
"System BIOS
and
Usage" describes the basic
input/output
system (BIOS)
and
its use. This section also
contains the software interrupt listing, a system memory
map, descriptions
of
vectors with special meanings,
and
a
set oflow-storage maps.
In
addition, Section 4 describes
keyboard encoding
and
usage.
• Section
5,
"Compatibility with the IBM Personal
Computer
Family" describes programming concerns for
maintaining compatibility among the IBM PC
Convertible system
and
the
other
IBM Personal
Computers.
iii
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