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The first use of magnetic core was in the Whirlwind computer, [19] and Project Whirlwind's "most famous contribution was the random-access, magnetic core storage feature." [20] Commercialization followed quickly. Magnetic core was used in peripherals of the ENIAC in 1953, [21] the IBM 702 [22] delivered in
Barium ferrite is a highly magnetic material, has a high packing density, [clarification needed] and is a metal oxide. Studies of this material date at least as far back as 1931, [3] and it has found applications in magnetic card strips, speakers, and magnetic tapes. [1]
Non-EMV cards work like magnetic stripe cards. This is common in the U.S. (PayPass Magstripe and Visa MSD). The cards do not hold or maintain the account balance. All payment passes without a PIN, usually in off-line mode. The security of such a transaction is no greater than with a magnetic stripe card transaction. [citation needed]
A scrip (or chit in India) is any substitute for legal tender.It is often a form of credit.Scrips have been created and used for a variety of reasons, including exploitative payment of employees under truck systems; or for use in local commerce at times when regular currency was unavailable, for example in remote coal towns, military bases, ships on long voyages, or occupied countries in wartime.
have prepared a landing space at 'Digital card' for merge of 'Magnetic strip card' into 'Digital card' Although Magnetic stripe card is better sourced, and explains using IBM.com sourcing how the magstrip card was developed, the name Digital card seems like it has more usefullness/has a better future, as seen in 2022.
A superconducting magnet is an electromagnet made from coils of superconducting wire. They must be cooled to cryogenic temperatures during operation.
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