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TX-2 Tape System

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Title: TX-2 Tape System  
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Subject: Digital Instrumentation Recorder, Data Storage Technology, IBM 726, IBM 3592, IBM 7340
Collection: Tape-Based Computer Storage
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TX-2 Tape System

The TX-2 Tape System was a magnetic tape data storage technology from the late 1950s.[1] It is the direct ancestor of LINCtape, used on the LINC laboratory computer.

The tape transports used in the system were made as simple and fool-proof as possible, consisting of a read-write head assembly, two reel drive motors, and a tape guide. The tape system used 10 tracks across a 12-inch (13 mm) tape on 10-inch (250 mm) reels. Maximum reel speed was 920 inches per second (23.4 metres per second). The system used digital speed control based on a clock track on the tape.

The 10-track head assembly contains five channels; three information, one timing, and one block mark. Each channel consists of two redundantly paired tracks, and the paired tracks are nonadjacent to minimize the effect of contamination on the tape surface.

This redundant track scheme was previously used on the MIT Whirlwind tape system.

References

  1. ^ R. L. Best and T. C. Stockerbrand, A Computer-Integrated Rapid Access Magnetic Tape System with Fixed Address, Proceedings of the Western Joint Computer Conference: Contrasts in Computers, May 6-8, 1958; pages 42-46.
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