<< The word ?smart card? is used in three different meanings (in order of usage frequency):
IC card with ISO 7816 interface
Processor IC card
Personal identity token containing IC-s
Integrated Circuit(s) Card is ad ID-1 type (specified in ISO 7810) card, into which has been inserted one or more integrated circuits. [ISO 7816]
IC cards can be devised by the capabilities of the chip:
Memory cards, which can just store data and have no data processing capabilities.
Wired Logic aka Intelligent Memory cards, which contain also some built-in logic, usually used to control the access to the memory of the card.
Processor cards, which contain memory and processor and have thus remarkable data processing capabilities. Very often the data processing power is used to encrypt/decrypt data, which makes this type of card very unique person identification token. Data processing permits also the dynamic storage management, which enables realization of flexible multifunctional card.
As the manufacturing process and most apparent functionality to ordinary user of all ISO IC cards are similar, the ?smart card? denotes usually ISO IC card. When the security is the most important, memory card equals to magnetic stripe card and ?smart? can be called only an encrypting device. As the number of system designers is small relative to ordinary users, the second meaning is suppressed by the first one.
Although the PC card?s size is also ID-1 and it contain integrated circuits, they are usually not called smart cards, because they are rarely personal. When PC card implements Personal Security Environment, it fits to third meaning of smart card and can be called as such. >>