Programmed Data Processor-1 Manual

This document is the official technical and operations manual for the Digital Equipment Corporation PDP-1. It covers:

• Introduction and System Overview: Details on the central processor, magnetic core memory, and input-output capabilities.
• Programming: Describes the instruction set (memory reference, augmented, and in-out transfer instructions), number system, indirect addressing, and operating speeds.
• Operations: Explains manual controls, operator push buttons, toggle switches, and interpretation of control panel indicator lights.
• Hardware Options: Lists standard and optional equipment including tape readers/punches, typewriters, memory modules, high-speed channels, sequence break systems, and CRT displays.
• Program Library: Provides an overview of available software, including the DECAL compiler-assembler and utility routines.
• Appendices: Contains an abbreviated instruction list, numerical instruction mapping, and alphanumeric codes.