Programmed Data Processor-8 Users Handbook

This handbook provides a detailed technical reference for the Digital Equipment Corporation (DEC) PDP-8 computer. The document is divided into four main sections:

• Section A: Covers the memory and processor architecture, including functional descriptions of major registers, instructions, memory addressing, program interrupts, data break mechanisms, memory extension, memory parity, and the extended arithmetic element.
• Section B: Details various input/output equipment including Teletype, perforated tape, A/D and D/A converters, plotters, card readers, line printers, magnetic drum and tape systems, and data communication systems.
• Section C: Contains operational procedures for the standard PDP-8, including console operation, manual data storage, and off-line teletype operation.
• Section D: Serves as an interface and installation guide, providing logic symbols, timing specifications, interface connection details, and physical space requirements for the system.

The document also includes extensive appendices detailing instruction sets, ASCII codes, conversion tables, and a list of available system and maintenance software.