MCR has various meanings in the Technology category. Discover the full forms, definitions, and usage contexts of MCR in Technology.
A magnetic card reader is a device which reads information contained in a encrypted sequence on a magnetic strip. Such as a credit card reader, or Driverse License reader. Hotel Door locks now commonly have a magnetic card reader attached to replace the old fassioned key, since the cards are so cheap to make, and can be remade even if the original is lost.
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