Why the device-centric view? (Not that there is anything wrong with that, but, you know, it's just an incremental innovation curve). Why not:

  - Cybernetics (incl. Szilard, Von Neumann)
  - Information theory (incl. Shannon, Turing) 
  - Whatever you might call LISP
  - Overlapping window based BLT GUIs

(for example)

?