Credit cards have a magnetic strip that encodes information about the credit card account. Why do devices that read the magnetic strip often include the instruction to swipe the card rapidly? Why can't the magnetic strip be read if the card is swiped too slowly?
Credit cards have a magnetic strip that encodes information about the credit card account. Why do devices that read the magnetic strip often include the instruction to swipe the card rapidly? Why can't the magnetic strip be read if the card is swiped too slowly?
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Transcribed Image Text:Credit cards have a magnetic strip that encodes
information about the credit card account. Why do
devices that read the magnetic strip often include the
instruction to swipe the card rapidly? Why can't the
magnetic strip be read if the card is swiped too slowly?
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