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CMOS
Last modified: Friday, March 26, 2004 

Short for complementary metal oxide semiconductor. Pronounced see-moss, CMOS is a widely used type of semiconductor. CMOS semiconductors use both NMOS (negative polarity) and PMOS (positive polarity) circuits. Since only one of the circuit types is on at any given time, CMOS chips require less power than chips using just one type of transistor. This makes them particularly attractive for use in battery-powered devices, such as portable computers. Personal computers also contain a small amount of battery-powered CMOS memory to hold the date, time, and system setup parameters.

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For internet.com pages about CMOS . Also check out the following links!

Related Links

Hardware Central 
Detailed test reports on the latest desktop and laptop computers. Plus news on trend-setting products just coming into the pipeline.

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."

What is BIOS? Mini-FAQ
Provides introductory information on BIOS and instructions on changing configurations using CMOS and accessing CMOS setup.

related categories

Hardware

Memory

Motherboards

related terms

BIOS

dope

NMOS

semiconductor

SOI


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