The 704 was a vacuum tube machine (predecessor of the 709 and later on the transistorized 7040/7090 series). STRETCH (IBM 7030) was a vastly faster system (of w

The 704 was a vacuum tube machine (predecessor of the 709 and later on the transistorized 7040/7090 series). STRETCH (IBM 7030) was a vastly faster system (of which about 30 total were sold, hence the difficulty of getting one for this project). Simulating a STRETCH on a 704 would be ghastly. I have no idea what the effect of doing this manually would have been on Mr Vyssotsky. Vyssotsky later achieved some notoriety as the technical lead on an obscure project called Multics.