Because it will damage the bank card chip.

It is best not to put the following items in the bank card.

1, ID card, so as not to accidentally lose your account at the same time, causing security risks.

2. Mobile phones, bus cards and other objects with signals and magnetism, so as to avoid degaussing the bank card due to the decrease of magnetism over time, and the bank card can only be replaced after degaussing.

What is the origin of credit cards?

Credit cards originated in American business and catering industry. 19 15 years, in order to expand sales, attract business and facilitate customers, some shops and restaurants in the United States adopted a "credit chip", which was similar in shape to a metal badge and later evolved into a card made of plastic as proof of customers' shopping consumption. This is the earliest credit card sprout in the world.

In 1950s, with the rapid development of capitalist economy, the level of personal consumption was greatly improved, and the wide application of computer and communication technology in banks provided a good environment and conditions for banks to develop credit card business. 1952, Franklin National Bank of California issued its first bank credit card. By 1959, more than 60 banks in the United States had issued credit cards. By the 1960s, credit cards were also popular in Britain, Japan, Canada and European countries. Since 1970s, some developing countries and regions have also started to issue credit cards, such as Hongkong, Taiwan Province, Singapore and Malaysia.

At the end of 1970s, China's foreign economic and cultural exchanges were expanding day by day. In this context, many people brought the credit card, a popular payment method abroad, to China. In order to meet the needs of reform and opening up, some domestic banks began to set foot in credit card business. During the period of 1978, Bank of China Guangzhou Branch took the lead in signing an agreement with Bank of East Asia and began to act as an agent for overseas banks' credit card business.

Through agency and experience, Zhujiang Card was issued by Zhujiang Branch of Bank of China on 1985. 1986, Bank of China issued the Great Wall Credit Card, which filled the blank in the financial history of China. When the People's Bank of China carried out the reform of bank settlement system on 1988, credit cards were brought into the new bank settlement system as a new settlement method, which laid the foundation for the further development of credit cards in China.

The history of credit cards can be traced back to the early 20th century, the birthplace of credit cards (America). But at that time, the cards were all made of metal, and the distribution targets were limited, limited to some places. For example, 1924, General Petroleum Company of the United States launched petroleum credit cards for employees and specific customers, which were presented to customers as VIP cards as a means to promote petroleum products. Later, it was also issued to the general public, which attracted other oil companies to follow up because of its good effect. Telephone, aviation, railway companies and other industries have followed suit, and the credit card market has become active.

The development of credit cards has suffered two setbacks. First, during the great American economic panic, many companies suffered losses due to bad debts and credit card fraud. Second, during World War II, the Federal Reserve Board banned the use of credit cards during the war. However, none of these can stop the development of credit cards.

At that time, the use of credit cards was limited, and the rudiment of modern credit cards was basically available until 195 1 came out. When the cardholder shows this card for consumption, there is no need to pay cash. Instead, Dinka will save money for the cardholder and ask merchantdiscount, and then charge the cardholder a monthly fee. Its business scope has gradually expanded from the initial restaurants to hotels, airlines and other tourism-related industries and general retail stores. With its rich travel experience, AmericanExpress began issuing cards on 1958 and expanded its business scope to areas outside the United States.

At this time, sensitive bankers also feel the convenience of credit cards. /kloc-in the 1950s, nearly 100 banks joined the ranks of issuing cards. However, due to the limited business volume, they were confined to the local area and did not charge annual fees to cardholders, making ends meet. A number of banks have withdrawn one after another, and only small and medium-sized financial institutions survive on the edge of profits. These surviving banks began to seek innovation and change. For example, BankofAmerica in Los Angeles, 1959 began to promote credit cards throughout California; The First National Bank of San Francisco, also located in California, was computerized in the same year. During this period, the bank also provides a revolving credit payment method, which makes cardholders pay more flexibly and the bank has more interest income. Later, cardholders gradually got used to using revolving credit, and the development of bank credit cards began to flourish.

What is the metal plate on the front of ICBC Peony Credit Card?

It is a holographic laser anti-counterfeiting logo, and the front or back of the credit card has a holographic laser anti-counterfeiting logo of the Temple of Heaven (China UnionPay logo), the pigeon (VISA logo) or the earth (MasterCard logo).

International credit card organizations Visa and MasterCard both use hot stamping holographic logo as one of the anti-counterfeiting means of cards. The main scene of Visa holographic logo is pigeons, mainly using three-dimensional holographic technology; The main scene of MasterCard holographic recognition is two halves of the earth and MasterCard background text, which mainly adopts comprehensive technologies such as synthetic holography, 2D/3D holography and microforms.

With the continuous development of China's bank card industry, the management of bank cards has been strengthened. In 200 1 year, the People's Bank of China issued document Yinfa [20065438+0] No.57: Notice of the People's Bank of China on the unified use of UnionPay logo and its holographic anti-counterfeiting logo. Article 4 clearly stipulates that in order to effectively prevent the risks brought by all kinds of counterfeiting to the bank card business, the "UnionPay" holographic anti-counterfeiting logo adopts a fixed-point production and special control operation mode, and the China Banknote Credit Card Factory affiliated to China Banknote Mint Corporation is responsible for unified production and sales. "UnionPay" holographic anti-counterfeiting logo, the main scene is the three-dimensional pattern of the Temple of Heaven, and the background is the horizontally arranged two-color Chinese character "Bank Card Alliance".

So much for the introduction of metal credit cards.