DECtape Transport Type TU55 and Control Type TC01

This document provides a comprehensive overview of the TU55 DECtape Transport and the TC01 DECtape Control system. It details the system's design, which emphasizes reliable, bidirectional, low-cost data storage for DEC computer systems.

Key sections include:

• System Overview: Describes the mechanical and electrical functionality, including the read/write mechanism, motor control, and transport logic.
• Control and Format: Details how the TC01 control interfaces with the TU55 and the computer, covering block transfer protocols, data word structures, and tape formatting.
• Programming: Outlines the software available for the PDP-8, including subroutine libraries, the library calling system, and utility programs for tape management (DECTOG).
• Technical Specifications: Provides comprehensive physical, electrical, and performance data for the TU55 transport and TC01 control, including timing, environmental requirements, and connector pin information.