A smart card resembles a credit card in size and shape, but inside it is completely different. First of all, it has an inside — a normal credit card is a simple piece of plastic. The inside of a smart card usually contains an embedded microprocessor. The microprocessor is under a gold contact pad on one side of the card. Think of the microprocessor as replacing the usual magnetic stripe on a credit card or debit card.
Smart cards are much more popular in Europe than in the United States. In Europe, the health insurance and banking industries use smart cards extensively. Every German citizen has a smart card for health insurance. Even though smart cards have been around in their modern form for at least a decade, they are just starting to take off in the United States.
Magnetic stripe technology remains in wide use in the United States. However, the data on the stripe can easily be read, written, deleted or changed with off-the-shelf equipment. Therefore, the stripe is really not the best place to store sensitive information. To protect the consumer, businesses in the U.S. have invested in extensive online mainframe-based computer networks for verification and processing. In Europe, such an infrastructure did not develop — instead, the card carries the intelligence.
The microprocessor on the smart card is there for security. The host computer and card reader actually “talk” to the microprocessor. The microprocessor enforces access to the data on the card. If the host computer read and wrote the smart card’s random access memory (RAM), it would be no different than a diskette.
Smarts cards may have up to 8 kilobytes of RAM, 346 kilobytes of ROM, 256 kilobytes of programmable ROM, and a 16-bit microprocessor. The smart card uses a serial interface and receives its power from external sources like a card reader. The processor uses a limited instruction set for applications such as cryptography.
The most common smart card applications are:
Credit cards
Electronic cash
Computer security systems
Wireless communication
Loyalty systems (like frequent flyer points)
Banking
Satellite TV
Government identification
Smart cards can be used with a smart-card reader attachment to a personal computer to authenticate a user. Web browsers also can use smart card technology to supplement Secure Sockets Layer (SSL) for improved security of Internet transactions. Visa’s Smart Card FAQ shows how online purchases work using a smart card and a PC equipped with a smart-card reader. Smart-card readers can also be found in mobile phones and vending machines.
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What are the uses for this computer card.?A friend of mine gave me this computer card on the front it says smart modular technologies,compactflash TM, USB enabled,CF+CE also it does not say anything about memory on the card what exactly is this card used for and can I use it on my computer any information would be appreciated.
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A marketing manager in Golden Smart Card company
end apdu commander for manager card? good video .
Most such buildings have a back-up generator that kicks in if there is a black-out. These generators usually only run emergency and essential things (such as security doors and emergency lighting) and can run for 12 -24 hours usually.
After this period, they doors will be deactivated (unlocked) as the electromagnet will be turned off.
The doors themself are powered through the AC mains, with the back-up generator in parallel, so neither battery or plug powered (a plug comes from the AC mains though, I am only say this as you cannot grab a plug an pull in out for the door to turn off).
Interfering with the power supply to the door will most likely trigger an alarm, a testing circuit would probably be in the circuit to test whether the door has been unlocked without autherisation.