| Also known as an add-on
card, internal card or
interface adapter, an expansion card
is an electronic board or card added in a desktop computer or other non-portable
computer to give that computer a new
ability, such as the ability to connect to another computer using a
network cable. Below is a list of expansion cards that could be installed
in a an available expansion slot.
Note: Although each of the
above devices are available as expansion cards, it is important to
realize that they can also be onboard
the motherboard.
Below is an graphic
illustration of an ISA SCSI card.
As can be seen by the below illustration, this adapter would enable
users to connect Internal and external SCSI drives into their
computers.
As can be seen by the above illustration expansion
cards are keyed, which means
they will only go
in one direction and only the type
of expansion
slot the card was designed for. However, the backs of expansion
cards are also easily identified by the metal back, often computer
components
will plugs into this section of the card.
Also see: Expansion, Expansion
slot, PC Card,
Reseat,
Riser
board, ROM card, Smart
card
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