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Justifications and trade-offs of historical hardware and software designs, and their possible alternatives.

37 votes

Twist in floppy disk cable - hack or intended design?

This was a good piece of production engineering. IBM expected to sell lots of twin-floppy PCs, even after the launch of the XT (personal experience in a UK reseller in late 1984). To assemble a twin-f …
grahamj42's user avatar
  • 1,162
5 votes

Why are symmetric bi-directional communication port cables not always crossover cables?

Data communications connector standards are specified for the majority use case of interconnecting different types of equipment : Terminal / printer / computer (DTE) <-> modem (DCE) for RS-232 Comput …
grahamj42's user avatar
  • 1,162