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In computing, an expansion card (also called an expansion board, adapter card, peripheral card or accessory card) is a printed circuit board that can be inserted into an electrical connector, or expansion slot (also referred to as a bus slot) on a computer's motherboard (see also backplane) to add functionality to a computer system. Sometimes ...
Interface name Year introduced Connector Max transfer Main use Notes CAMAC: 1972: Processor independent: Industry use. S-100: 1974: 2×50 2.54 mm card edge: Designed around Intel 8080 but used with other processors too
An adapter card or expansion card is a circuit board which is plugged into the expansion bus in a computer to add function or resources, in much the same way as a host bus adapter (see above). [ 3 ] [ 1 ] Common adapter cards include video cards , network cards , sound cards , and other I/O cards.
There are various types of expansion cards: A videocard transforms data from the computer memory into the video signal for the monitor. The videocard has its own processor, relieving the CPU of the computer; A sound card enables the computer to work with sound; A network card enables the computer to interact on a local network.
A compatibility card is an expansion card for computers that allows it to have hardware emulation with another device. While compatibility cards date back at least to the Apple II family , the majority of them were made for 16-bit computers, often to maintain compatibility with the IBM PC .
The ACR specification provides a lower cost method to connect certain expansion cards to a computer, with an emphasis on audio and communications devices. Sound cards and modems are the most common devices to use the specification. ACR and other riser cards lower hardware costs by offloading much of the computing tasks of the peripheral to the CPU.
A USB-A expansion card and slot. Installing expansion cards takes seconds and requires no tools. A core feature of the Framework laptop is the expansion card system that provides the primary input/output for the laptop. In its base form, the laptop is equipped with recessed slots containing USB-C ports that can be used directly.
A modern consumer graphics card: A Radeon RX 6900 XT from AMD. A graphics card (also called a video card, display card, graphics accelerator, graphics adapter, VGA card/VGA, video adapter, display adapter, or colloquially GPU) is a computer expansion card that generates a feed of graphics output to a display device such as a monitor.