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2. ISO/IEC 7810 - Wikipedia

   en.wikipedia.org/wiki/ISO/IEC_7810

   Payment cards commonly use the ISO/IEC 7810 ID-1 format. ISO / IEC 7810 Identification cards — Physical characteristics is an international standard that defines the physical characteristics for identification cards. [1] The characteristics specified include: The standard includes test methods for resistance to heat.

3. Magnetic-tape data storage - Wikipedia

   en.wikipedia.org/wiki/Magnetic-tape_data_storage

   Magnetic-tape data storage is a system for storing digital information on magnetic tape using digital recording. Tape was an important medium for primary data storage in early computers, typically using large open reels of 7-track, later 9-track tape. Modern magnetic tape is most commonly packaged in cartridges and cassettes, such as the widely ...

4. IBM Selectric - Wikipedia

   en.wikipedia.org/wiki/IBM_Selectric

   These featured electronically interfaced typing mechanisms and keyboards and a magnetic storage device (either tape in a cartridge, or a magnetic-coated card the same size as an 80-column punched card) for recording, editing, and replaying typed material at ca. 12–15 characters per second.

5. Magnetic storage - Wikipedia

   en.wikipedia.org/wiki/Magnetic_storage

   Magnetic storage or magnetic recording is the storage of data on a magnetized medium. Magnetic storage uses different patterns of magnetisation in a magnetizable material to store data and is a form of non-volatile memory. The information is accessed using one or more read/write heads . Magnetic storage media, primarily hard disks, are widely ...

6. Machine-readable medium and data - Wikipedia

   en.wikipedia.org/wiki/Machine-readable_medium...

   In communications and computing, a machine-readable medium (or computer-readable medium) is a medium capable of storing data in a format easily readable by a digital computer or a sensor. It contrasts with human-readable medium and data . The result is called machine-readable data or computer-readable data, and the data itself can be described ...

7. Do magnets affect credit cards? - AOL

   www.aol.com/finance/magnets-affect-credit-cards...

   Prolonged exposure to magnets can affect the functionality of your credit card. Cards with magnetic strips can also become demagnetized due to dirt, scratches and other damage. EMV chip technology ...