in a magnetic stripe, for magnetic cards
and in a chip, for smart cards
The data stored on a credit or debit card is stored not only in the metallic chip - but also on a magnetic strip on the rear of the card. Magnetic card readers read the data from the strip on the card, instead of the embedded chip.
A smart card provides facilities to secure data and is a part of encryption hardware that helps secure data where privacy and security of this data is paramount (like corporate data and day-to-day transaction data when a person makes a purchase online or in-store with their credit card).
credit card flow diagram
The stored value credit card has the credit card information on the magnetic strip. The smart card credit card has the information in the smart card computer-chip.
Short answer: No. Long answer: All data is automatically stored in SD cards, unless there isn't one or one has altered the settings. When one purchases a new SD card, all the previously recorded data is stored in the old memory card. To obtain the data for the previous SD card, one has to transfer the files. So when one puts in a new SD card, the new data will be stored in the new SD card.
I believe so..But all ur credit card info will be SECUREDand no one will be able to get to ur credit card info unless u tell them ur credit card number.
A credit card
The data pertaining to a single card - is a record. The data relating to more than one card for the same customer - is a file.
Why do credit cards have a magnetic stripe on the back
Credit cards are an application of smart card.Credit cards are either smart card or magnetic strip card.A smart card is a card which have an IC chip to process the data/ Smart card have the capability to process the data.
When a credit card is swiped through a reader, pulses of current are generated in the coils and read the electromagnets on the magnetic strip of the credit card.
It is most likely a Smart Card reader. SC readers are commonly used in corporate or military situations to further protect the data stored on the laptop by forcing the user to insert a special card and provide a password.