What are expansion slots in Mother board of a computer

Mother board expansion slots standards

There are different types of mother board expansion slot standards. The most common standards of mother board expansion slots are covered in this article.

The mother board expansion slots allow you to plug in the cards to your computer for increased functionality. The expansion slots provide additional and new functionality to your computer. Let us see what are the types of expansion slots available.

PCI Express:

The PCI express is a new stadard for the expansion cards. The PCI express now replaces the old standards like PCI, AGP etc. The PCI standars provides more bandwidth and is mainly used for Video cards. The newese mother boards of today are being manufactured with more number of PCI express cards than the old PCI cards.

PCI:

PCI is the short form for Peripheral component interconnect. This is a old standard which provides less bandwidth compared to PCI express. The PCI standard was created in the year 1993 but still the mother boards are having PCI slots for compatibility purpose.

AGP:

The AGP is a short form for Accelerated graphics port. The AGP slots are mainly used for video cards. The AGP standard was for the AGP standard is also being phased out as the new standard PCI express with higher bandwidth is introduced.

ExpressCard & PC Card (or PCMCIA):

These stndards were designed to be used with laptops. the ExpressCard is the successor of the PC Card standard and has more bandwidth than PC card.

ISA:

The ISA is a short form for Industry Standard Architecture. This is another type of expansion slot. This is very old standard and is older than PCI and can be found only on very old computers.

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