Atlas magnetic tape system: interrupt routines and other documentation.

This material is held atUniversity of Manchester Library

  • Reference
    • GB 133 ESF/23
  • Dates of Creation
    • 1964
  • Physical Description
    • 1 folder

Scope and Content

Folder, containing:

  • (a) a 16-page typed description of Interrupt Routines R401 - R407, R411 - R413, R419 and R421;
  • (b) also, a 2-page description of mag tape flip-flops in the Subsidiary Store;
  • (c) also, a single-page list of abbreviations used in mag tape documentation.
  • (d) Foolscap diagram of digits in mag tape working stores;
  • (e) 8 foolscap sheets of flow charts for dealing with mag tape interrupts. There are duplicate copies of all of the above documents.