We often use a credit card the same size, can be embedded into the chip and load the data, the smart card phone calls, e-cash payments and other applications, and refreshed periodically added. Soon after, you can use a smart card:
Phone dial and charge per call basis
Establish your identity when you log on to the Internet access provider or online banking
Pay for parking, or to gain access to the Metro, train, or bus parking
If you do not fill out the form to the hospital or doctor's profile
E to make small purchases
Microprocessor on a smart card is secure. Host and card readers actually "talk" microprocessors. Microprocessor enforces access data on the card. If host read/write smart card random access memory (RAM), and a floppy disk is no different.
Smarts cards up to 8 KB RAM, 346 KB ROM, programmable ROM and 256 KB for 16-bit microprocessor unit). Smart cards using the serial interface, its power is received from an external source like a card reader. Applications such as encryption uses a limited set of instructions the processor.
How smart cards work
Smartcard contains detailed information than magnetic stripe card it can for different application programming. Some cards can contain a program and data to support multiple applications and you can update as they add a new application after it is sent. Inserted into a slot and, through a special reader, or if at a distance of toll booths, while reading the smart cards can be designed. Card at once (as trade show) or purchase (for most applications).
Programming with PC hardware in the smart card industry standard interface defined by the PC/SC working group, on behalf of Microsoft, IBM, Bull, Schlumberger, and other interested companies. Another standard called OpenCard. There are two leading smart card operating system: JavaCard and MULTOS.
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