Glossary of PC Terms

1. PCI - PCI is an abbreviation for Peripheral Component Interconnect, which is a term used to describe a common connection interface for attaching computer peripherals to a PC's motherboard, or main circuit board. Most often, a PCI slot is used to connect sound and network cards.

2. AGP - AGP is an abbreviation for the term Accelerated Graphics Port, which, unlike the PCI connection, was used exclusively for connecting video cards to a PC. AGP has been phased out of contemporary PCs in favor of the much faster PCI Express.

3. Megapixel - A Megapixel is a unit of measurement which represents one million pixels — those tiny dots of color which make up an image.

Practically speaking, Megapixels represent the resolution, or size and quality, of an image, or an image capturing device such as a web cam or digital camera. The higher the number of Megapixels a camera can capture, the higher quality the images it produces will be.