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IBM Personal Computer AT Technical Reference

Overview

This document serves as a comprehensive technical reference for the IBM Personal Computer AT. It provides in-depth information essential for hardware and software designers, programmers, and engineers seeking to understand the system's architecture and operation.

Key Components and Features

  • Detailed specifications of the system board, including memory, microprocessor (Intel 80286), and I/O channel architecture.
  • Information on the Intel 80287 Math Coprocessor for high-speed arithmetic operations.
  • Technical details on the keyboard interface, including scan codes and command protocols.
  • Explanation of the System BIOS, its usage, interrupt vectors, and programming hints.
  • Power supply specifications, input/output requirements, and protection features.
  • System timing, interrupt handling, and DMA controller operations.

Target Audience

This manual is intended for professionals involved in the development, maintenance, or advanced use of the IBM Personal Computer AT hardware and software.

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