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177 nibbles is about four-fifths as much as a Magnetic Stripe Card
In other words, the amount of a Magnetic Stripe Card is 1 times that amount.
(maximum capacity; per ISO 7811 specification)
The storage capacity of a magnetic stripe on a credit or identification card is about 300 nibbles. According to legend, Forrest Parry, the IBM engineer who developed the first magnetic stripe card in 1960, was able to solve the problem of adhering the strip to the card after his wife suggested using an iron.
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