A smart card operating system manages the data and the memory allocation. The microprocessor can add, delete, and edit the existing card data. These cards have a microprocessor embedded into the chip to provide dynamic data processing capabilities. These cards are of three types - straight memory cards, protected memory cards, and stored value memory cards. They are not robust and are used in disposable or single-use products. These cards have limited usage because of low memory capacities. The data can be overwritten but can't be modified programmatically as the card is not programmable. These cards can store, read and write data to the chip. They have two technologies embedded in them, and each interface connects to different chips with independent modules. ![]() They can work as contact smart cards as well as contactless smart cards depending upon the occasion. These cards are a combination of both the cards mentioned above. A typical example of this type of card is prepaid contactless travel cards used on buses and trains. As a result, the use of contactless smart cards has risen due to the COVID-19 pandemic. These cards provide hygienic benefits as there it removes the risk of the transference of bacteria, viruses and infection. These cards use radio frequencies or Near Field Communication (NFC) technology to establish a wireless connection. They only need to be close to a card reader to be read there is no need for direct contact. Contactless Smart CardsĪs the name suggests, these cards do not need physical contact with an interface to make any transaction. ![]() The most common examples of contact smart cards are credit cards, ATM cards, and SIM cards. These cards are inserted into the card reader, which reads the information stored on the contact plate and carries out the required transaction. These cards require physical contact with the card reader. The various types of smart cards are: Contact Smart CardsĬontact smart cards are the most common smart cards. The categorization of smart cards depends on various factors, like the way the card reads and writes data, the type of embedded chip, and the chip's capabilities. The chip exchanges data with card readers through a serial interface either through direct physical contact or via short-range wireless connectivity standards like RFID or NFC.
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