[Amazon.ca] Generic xbox one wired controller $17
Usually goes for $50, although there are complaints that it's not compatible with headsets.
IBM 701 | germanium diodes | 2000 multiplication or division operations per second | 2048 word memory on 72 tubes, 1024 bits per tube| 38-bit Accumulator | 36-bit Multiplier-Quotient | 2 IBM 726 magnetic tapes - 2x 2 million digit storage
