41753169079241_page_107

41753169079241 | page 107 | https://thedailydialectics.com/pdfs/FIOA/41753169079241/41753169079241.pdf

2. Two principal categories of cipher machines are those that use (1) rotors (wired rotors) or (2) pin wheels to produce key. A rotor is a wheel with two faces, called input ‘and output faces, each with n contacts or atuds and a set of n wites making electrical | connections between the faces, The…