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Mike Liddy

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Q: Who invented the credit card magnet strip?
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Related questions

What is the black strip on the back of a credit card called?

magnet strip


Magnet damage a credit card?

Yes, The black strip on the back of a credit card (or any other plastic card with a dark strip) stores information on it in magnetic form. Thus if you place a credit card near a strong magnet it will change/damage this magnetic information making the strip unreadable.


How do you erase magnetic information on a credit card?

Take a magnet, swipe it on the magnetic strip on the card.


How does a credit card machine work?

You put your card into the machine, the magnet recognizes the strip on the card and asks for the pin. The user enters the pin and then next paths are made.


Why should you never keep a credit card near a magnet?

You should never keep a credit card neat a magnet because that black strip at the bottom of the card is actually a sort of memory like in a computer chip. The magnet makes all this memory wipe to either become 1 or 0(depending on the direction). Also, if you are using a card with a swipe chip, this will also be wiped.


How does a magnet in a credit card work?

Magnet's ruin credit card's smarts! the reason why is just because. there is nothing else to it!


When was the first credit card invented?

the credit card was invented in 1950


What are the bad uses of a magnet?

A magnet can erase details on the magnetic strip of your ATM credit or debit card if it's placed in close proximity to them. Needless to say, this can cause a great deal of inconvenience and embarrassement at a time when least needed !!! A magnet can erase details on the magnetic strip of your ATM credit or debit card if it's placed in close proximity to them. Needless to say, this can cause a great deal of inconvenience and embarrassement at a time when least needed !!!


Will a magnet affect a credit card?

yes but it depends on the type of magnet and how strong it is


What devices will have its data scrambled by a magnet?

A credit card


Write protection sd card removal Would putting a strong magnet on it do the trick only they wipe credit card strip s clean?

SD cards are not magnetic media. It will (should) not work. H


What year was the credit card invented?

The first credit card, Diners, was invented by Ralph Schneider in 1950.