Unwinding performance and power on Colossus, an unconventional computer

@article{Wells2010UnwindingPA,
  title={Unwinding performance and power on Colossus, an unconventional computer},
  author={Benjamin Wells},
  journal={Natural Computing},
  year={2010},
  volume={10},
  pages={1383-1405}
}
In 1944 the computing machine known as Colossus became operational in support of British cryptanalysis and decryption of German High Command wireless traffic. This first electronic digital and very unconventional computer was not a stored-program general purpose computer in today’s terms, despite printed claims to the contrary. At least one of these asserts Colossus was a Turing machine. While an appropriate Turing machine can simulate the operation of Colossus, that is not an argument for… CONTINUE READING