Smart Cards-plastic cards the size of a credit card-have a built-in integrated circuit ship which contains a microprocessor, card operating sysrtem, security module, and memory designed to process specific transactions.

• Smart Card Standards
  

• Memory Structure (MIFARE : 1 Kbyte Standard)
  

• Smart Card Types
  

• Contact Card
  Activated when it is inserted into an adaptable interface device, touching contact points.
  High security is required.
  
  Contactless Card
  Electronic combinations of coils power the chip within the card,
  and radio communication takes place using an antenna.
  Transit cards are typical contactless cards.
  
  Combi Card
  Features of contact and contactless cards can be shared within a single card,
  integrating heterogeneous applications.
  
  Contact Card
  Features of contact and contactless cards co-exist, physically independently,
  within a single card. Less efficient than a Combi card.