What are the different types of Access control cards?

 Access control cards generally come in two types: key fob cards and PVC card cards. Both types can be inlaid with chips. Let's analyze their characteristics below:

  ID access cards : ID cards, short for identity verification cards, are non-writable proximity cards. The chip number within an ID card is fixed and cannot be changed at the factory. Each use simply reads the card number and related information for association. Like magnetic stripe cards, ID cards only use the "card number"; they have no other security features besides the card number, which is publicly exposed . Therefore, ID cards are essentially "proximity magnetic stripe cards," similar to key fob ID cards.

  IC access control cards: IC cards are another type of information carrier that emerged after magnetic stripe cards.IC cardsrefer to integrated circuit cards. Common IC cards use radio frequency technology to communicatewith IC card readers. IC cards store information through an integrated circuit within the card.IC cards offer good security and are not easily copied.The information onan IC card can be freely read, modified, and erased, but a password is required. (Key fob cards are also IC-based.)

  CPU access control cards : CPU cards, also known as smart cards, contain a microprocessor CPU, storage units (including random access memory RAM, program memory ROM (FLASH), user data memory EEPROM), and chip operating system COS in their integrated circuit. They are also a type of IC card, but CPU cards are more advanced than IC cards.

   Previously, many access control cards used ID cards . However , due to the drawbacks of ID cards and the reduced cost of IC cards , many hotels and other establishments now use IC cards for access control . Firstly, IC cards offer higher security and are less prone to duplication; secondly, their cost is lower and more affordable. For those seeking a more advanced access control system, CPU cards can be used.

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