It is a circuitry equipment hardware that gives the computer additional functionality or electronic interface. It included a card which is built inside the computer to exchange information with microprocessor and other components of a machine.

There are many kinds of adapters such video, network card, NIC (Network Interface Card) etc. In computer programming, the adapter design pattern (often referred to as the wrapper pattern or simply a wrapper) is a design pattern for adapting one interface of a class into another interface that a client expects.

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Martin Cooper (inventor) Inventing handheld cellular mobile phone Making world’s first handheld cellular mobile phone call. Martin “Marty” Cooper (born December 26, 1928) is an American engineer.