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Adapter Cards

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Adapter Cards

Adapter cards (also known as expansion boards, accessory cards or adapter card) are used in the electrical connector, or expansion slot on a computer motherboard, backplane or riser card to add functionality to a computer system via the expansion bus.

Types of Adapter Cards: * Video cards * Multi Media cards * I/O cards * Communications cards

* Video cards: Also known as graphics processors, graphics accelerators, display cards or graphics cards. Their job is to do the heavy lifting in showing and allowing you to interface with what you are doing in the computer. They generate the graphics that is to be shown and send the finished signal out to your screen, monitor or projector.

* Multi Media cards: There are many types of multimedia cards available and very commonly used in the computer systems. One of the most common cards used are the sound cards. They generate sound signals to be sent to your computer i.e. the speakers and the sound systems. Mostly, they are found where there is a microphone or input jack for recording. Now a day’s sound cards are given importance due to the increasing new technologies HD audio discs and Blu-Ray discs allow for high definition and multi-channel audio. Usually standard or built in cards are not very powerful to process high quality sound files, cannot send audio to many channels. But upgrading of these cards today gives many more advantages. * I/O cards: Input/output cards (expansion cards) do the simple functioning of adding extra functionality to the motherboard.

* Communication cards: They are of two types- * NIC * Modem cards

* NIC (Network Interface Cards) - Generally these cards are used to provide access to Ethernet networks between 10Mb and 1 GB connectivity speed.

* Modem cards- These cards are used to dial-up access

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