Prototype Fragments from Babbage’s First Difference Engine

@article{Roegel2009PrototypeFF,
  title={Prototype Fragments from Babbage’s First Difference Engine},
  author={Denis Roegel},
  journal={IEEE Annals of the History of Computing},
  year={2009},
  volume={31},
  pages={70 - 75}
}
  • Denis Roegel
  • Published 2009
  • Computer Science, Engineering
  • IEEE Annals of the History of Computing
The comparison of the various fragments of Babbage's first difference engine has led the author to conclude that there are intruder parts among the fragments of the Museum of the History of Science in Oxford. Based on a few scant mentions in early descriptions by Babbage, the author believe that some of these fragments belong to Babbage's 1822 model, in which case this represents a recovery of bits of a missing chapter in the history of calculating machines. This model was the prototype of… Expand
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