Bank card is a general term, which also includes: debit card, credit card, savings card, credit card, etc. The black line on the UnionPay LOGO is a miniature code. Bank cards are also divided into levels. Before the bank card, The six-digit number shows the grade of the card. In today's society, six bank cards are considered a few people. Many people have cards from major banks for convenience. Although there are many kinds of cards, most people have little understanding of bank cards. They are all very superficial. Even though a bank card is only a little big, it contains a lot of information. Below I will list four pieces of cold knowledge about bank cards. Different types of bank cards have different functions

Debit card is the most commonly used bank card. It has the most powerful functions. Except that it cannot be overdrafted and there is no interest on savings, it can basically do everything else. For example, you can save, shop, transfer money online, buy funds, etc. Although a savings card is also a type of debit card, its functions are relatively limited. It can make deposits and withdrawals, and you can make purchases by swiping the card, but it cannot purchase funds and other related financial services. However, it has the advantage of depositing money. Money earns interest. Everyone knows that a credit card has a fixed consumption limit and a fixed withdrawal limit, so you can use the card to consume or withdraw money within a limited amount. After swiping the card, you can pay it off on the next monthly bill. Therefore, we also call credit cards Card. The black lines on the UnionPay LOGO are letters

If you look carefully, you can find that there is a black line on the UnionPay LOGO. If you don’t look carefully, you will think it is an ordinary black line, but if you look at it with a magnifying glass, it will appear. You will find that this is not a line but a special character. This string of characters is not an ordinary character, but a miniature code. The contents of this string of codes are:

The credit card type code and other information composition, the card issuer’s information Pinyin, card issuing bank code, etc.

So this black line is code, not an ordinary line. Bank cards are also divided into levels

Since 2017, the central bank has implemented classified control over bank cards. They are divided into three categories: first-class cards, second-class cards, and third-class cards. They are of different categories and have different functions. Among them, the first-category cards and the second-category cards are the most commonly used. The first-category cards are equivalent to universal cards, which can not only be used freely, but also without restrictions. Although the functions of the second-category cards are similar, the transfer limit is limited. Generally, about 10,000 yuan can be accumulated in a day. Type III cards are basically of no great use. They can only be used for small-amount purchases and cannot be used for other large-amount transactions, and the amount they can store is also very small. The meaning of bank card number

The first six digits of the bank card number represent the issuing bank code. It is also called BIN, so you can tell what card it is from the first six digits. Take the Agricultural Bank of China as an example. The first three digits of the Agricultural Bank of China start with 62284, so 622848 is an ordinary bank card. The last digit of 5 is a gold card, and the last digit of 6 is a platinum card. So what level of card it is, you only need to look at the sixth Just a number will tell.