Expansion card Guide, Meaning , Facts, Information and Description
An expansion card in computing is a printed circuit board that can be inserted into an expansion slot of a computer motherboard to add additional functionality to a computer system.One edge of the expansion card holds the contacts 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 earliest type of PC expansion card was built to the industry-standard architecture (ISA) specification and had a metal bracket at one end. This bracket is fastened to the back of the computer chassis with a screw.
Connectors mounted on the bracket allow the connection of external devices to the card. Depending on the form factor of the motherboard and case, around one to seven expansion cards can be added to a computer system. There are also other factors involved in expansion card capacity. For example, some expansion cards need two slots like some NVIDIA GeForce FX graphics cards and there is often a space left to aid cooling on some high end cards.
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Expansion card types