Keycard lock
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A keycard lock is a lock operated by a keycard, a flat, rectangular plastic card. The card typically, but not always, has identical dimensions to that of a credit card, that is ID-1 format. The card s
A keycard lock used for entry into a hotel room.
A mechanical keycard, with "bumps" that operate pins inside of the lock (similar to a pin tumbler lock)
A keycard with a magnetic stripe
A hotel entry card used to enable a light switch
Digital card
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A digital card is either a physical item, such as a memory card on a camera, or, increasingly since 2017, the digital content hosted as a virtual card or cloud card, as a digital virtual representatio
Front side of the first Magnetic Stripe plastic credit card. Note that the narrow magnetic stripe is on the front of the card. It was later switched to the back side.
Visualization of magnetically stored information on a magnetic stripe card (recorded with CMOS-MagView, dark colors correspond to magnetic north, light colors correspond to magnetic south)
The first prototype of magnetic stripe card created by IBM in the late 1960s. A stripe of cellophane magnetic tape is fixed to a piece of cardboard with clear adhesive tape