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Colossus and Code Breaking in World War II
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- 1 Intro
- 2 Some context
- 3 Lorenz, Tunny and the German high command
- 4 Demo
- 5 Machine structure
- 6 Notation
- 7 Using a depth
- 8 Mathematical reconstruction
- 9 Describing the machine
- 10 Workflow at Beltchley
- 11 Tutte's 1 + 2 break in
- 12 Characterization of AD
- 13 Heath Robinson
- 14 Ideas behind Colossus
- 15 The problems
- 16 Output of Colossus
- 17 Colossus Mk1
- 18 Tape reader
- 19 Vacuum tubes
- 20 wheel pattern generation
- 21 Integrator capacitor circuits
- 22 A generation
- 23 Shift registers
- 24 Programmable logic
- 25 Counters
- 26 An example run
- 27 Success
- 28 Influence
