CPU

Central Processing Unit. The integrated circuit (chip) responsible for integrating program instructions, performing calculations, and controlling all input and output operations.

Driver

A program that controls a specific piece of equipment in the system. Examples of drivers include expanded memory managers, display drivers, printer drivers, and mouse drivers.

IDE

Integrated Drive Electronics. A type of hard disk drive interface in which the controller is on the drive instead of on a controller card. Your computer includes an interface on the main system board for up to two IDE hard disk drives.

ISA

Industry Standard Architecture. The 8- or 16-bit bus standard developed for IBM compatible computers.

Jumper

A small moveable plug that connects two pins on a device’s circuit board. Jumpers alter the operation of a particular function.

Local bus

An internal group of wires that sends information from the microprocessor directly to the video controller in the computer. Local bus video provides increased performance.

Math coprocessor

See Coprocessor.

2 Glossary