With the development of commodity economy and science and technology, the application scope of credit cards has been expanding, and various cards have appeared in the market. IC card? Is one of the best.
? IC card? Also known as? Smart card? It is unique in that there is one in Cary. Integrated circuit chip? There are both microprocessors, memories and corresponding interface circuits in the chip, so it has the ability of data storage and arithmetic processing, and the storage capacity is very large, which can be as high as thousands or even megabytes. Because of this, this card is not only used for? Credit card? In addition, you can also record some important personal information. Such as: personal health status, past medical records (similar? Medical record card? ); Personal education, what school did you go to? What subjects have you studied? How did you do in the exam? (similar? Student card? )。 Actually, it's playing again? Information card? The role of, so popular with users. At present, there are hundreds of millions of IC cards issued around the world, among which IC cards in Western Europe are the most popular, and China has also begun to popularize and popularize IC cards.
We usually use magnetic cards, which are different from ic cards. Magnetic card is a special plastic card with magnetic stripe. The magnetic stripe can record information such as card number, account number and network number. However, its storage capacity is far less than that of IC cards, generally only tens to hundreds of bytes, so its function is limited. However, the manufacturing cost of magnetic cards is very low and it is not complicated to manufacture. At present, the most widely used and widely circulated credit card in the world is magnetic card.
The biggest disadvantage of magnetic cards is poor security and anti-counterfeiting. The losses caused by counterfeiting and illegal use of magnetic cards in the United States are as high as hundreds of millions of dollars every year. In addition, the Internet must use a magnetic card, which requires a higher communication network. IC cards are more secure, and the requirements for communication networks are not high.