What is a device that is around the same size as a credit card, containing embedded technologies that can store information and small amounts of software to perform some limited processing?

Smart card

Explanation:

A smart card looks much like a credit card in shape and size, but it is very much different inside. A smart card usually have an inside, but a credit card is simply plastic in nature. Inside a smart card we can find a microprocessor embedded within. It is usually located beneath a gold contact pad found on a side of the card. The microprocessor is capable of storing information and they are usually used in limited processing.

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