Monday, May 21, 2018

Two Types of Cards More Faster Then, Instead of Credit Card!

Today in the United States, most credit cards are old-fashioned magnetic strip cards. A magnetic-strip card has a strip of magnetically encoded data on its back. The encoded data might be included your name, account number, and PIN(Personal Identification Number). Two other kinds of cards: 
Smart Card & Optical Card, which hold far more information are already in popular in Europe.
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·        Smart Card:

A Smart Card looks like a credit card but contains a microprocessor embedded in the card. Intelligent smart cards have, in addition to the embedded processor, input, output, and storage capabilities. Memory cards have only storage capabilities in addition to the processor. When inserted into a card reader, it transfers data to and from a central computer,  and it can store some basic financial records. Smart Cards can be used as a telephone debit card. You insert the cards into the slot in the phone, wait for a tone, and dial the number. The length of your call in automatically calculated on the chip inside the card, and the corresponding charge is deducted from the balance. Many college and universities issue student cards as smart cards.

·        Optical Card:


The conventional magnetic-strip credit card holds the equivalent of a half page of data. The smart card with a microprocessor and memory chip holds the equivalent of 250 pages. The optical card presently holds about 2000 pages of data. The optical card uses the same type technology as music compact disks but looks like silvery credit cards. Optical Cards are plastic, laser-recordable, wallet-type card use with an optical-card reader. Because they can cram so much data into a little space, they may become popular in the future. For example, a health card in light of the optical card would have a room not just for the person's medicinal history and medical coverage data yet in addition for advanced pictures, for example, electrocardiograms.

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