Expansion Card - Is a printed circuit board
that can be inserted into an expansion slot of a motherboard to add additional
functionality to a computer system. One edge of the expansion card holds the
contacts (the edge connector) that fit exactly into the slot. They establish
the electrical contact between the electronics (mostly integrated circuits) on
the card and on the motherboard.The primary purpose of an expansion card is to
provide or expand on features not offered by the motherboard.
VGA Card
Video cards or VGA Cards - The video card
is an expansion card that allows the computer to send graphical information to
a video display device such as a monitor or projector.
Sound Card
Sound card - Is a computer expansion card
that facilitates the input and output of audio signals to and from a computer
under control of computer programs. Many computers have sound capabilities
built in, while others require additional expansion cards to provide for audio
capability.
NIC Card
NIC (Network interface card) - A network
interface card, more commonly referred to as a NIC, is a device that allows
computers to be joined together in a LAN, or local area network. Networked
computers communicate with each other using a given protocol or agreed-upon
language for transmitting data packets between the different machines, known as
nodes.
