Multi 8 Terminal Manual

Summary

The Multi 8 Terminal Manual serves as a guide for users operating within the Multi 8 real-time/timesharing environment on PDP-8 family computers. The manual details how the Multi 8 system provides each user with a "virtual" machine capable of running the standard OS/8 operating system, while managing resource sharing and terminal I/O automatically.

Key sections of the document include:

• Getting Started: Procedures for logging into the system using passwords and utilizing extended Command Language (CCL) commands such as BYE and TALK.
• Environment Management: Explanations of disk management, including the use of SHSAVE to manage virtual system files, and the handling of peripheral access (lineprinters, tape, etc.).
• Terminal I/O: Guidance on handling terminal input/output, including command buffering, "type ahead" features, and keyboard control character interpretations (e.g., CONTROL/S, CONTROL/Q, CONTROL/C).
• Console Operations: Instructions for using CONTROL/B to access administrative console-like functions, such as resetting the system, setting registers, and debugging via the WHERE command.
• OS/8 Compatibility: Technical notes on system patches required for specific software (Fortran II, FOCAL, Fortran IV) to function correctly in the Multi 8 environment.
• Programming Reference: A comprehensive guide for assembler programmers, detailing how Multi 8 emulates various I/O instructions (IOTs) and providing a list of system-specific IOTs (such as the "Giant IOT" 6770 for time and system tasks).