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English Electric System 4

 Home Mathematics History of mathematics History of computing History of computing in the United Kingdom Early British computers
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The English Electric System 4, often referred to simply as "System 4," is a type of railway signaling system that was developed by English Electric. It is an advanced, electronic-based system used primarily in railways for the purpose of controlling train movements and ensuring safety through the automation of signaling processes.

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  1. Early British computers
  2. History of computing in the United Kingdom
  3. History of computing
  4. History of mathematics
  5. Mathematics
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