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expansion bus
Last modified: Monday, April 12, 2004 

A collection of wires and protocols that allows the expansion of a computer by inserting printed circuit boards (expansion boards). Traditionally, PCs have utilized an expansion bus called the ISA bus. In recent years, however, the ISA bus has become a bottleneck, so nearly all new PCs have a PCI bus for performance as well as an ISA bus for backward compatibility.

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Troubleshooting the Motherboard and System Devices
Focuses on problems related to the motherboard and system devices, including the components of the motherboard, along with system devices such as the cache and I/O buses, the BIOS and CMOS memory, system resources, and features such as Plug and Play. This page is from "The PC Guide."

related categories

Buses

related terms

bus

cache coherence

EISA

expansion board

local bus

PCI

protocol

VL-Bus


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