internet.com
You are in the: Small Business Computing Channelarrow View Sites +
Small Business Technology
» ECommerce-Guide | Small Business Computing | Webopedia | WinPlanet |  »Close
Webopedia.com
Enter a word for a definition... ...or choose a computer category.
 
 

menu
   Home
   Term of the Day
   New Terms
   Pronunciation
   New Links
   Quick Reference
   Did You Know?
   Categories
   Tech Support
   Webopedia Jobs
   About Us
   Link to Us
   Advertising
  

talk to us
   Submit a URL
   Suggest a Term
   Report an Error

internet.com
Developer
International
Internet Lists
Internet News
Internet Resources
IT
Linux/Open Source
Personal Technology
Small Business
Windows Technology
xSP Resources
Search internet.com
Advertise
Corporate Info
Newsletters
Tech Jobs
E-mail Offers
commerce
  Be a Commerce Partner
 
 
 
 
 
 
 
 
 
 
 
 
 
 

DMA
Last modified: Tuesday, November 11, 2003 

Short for direct memory access, a technique for transferring data from main memory to a device without passing it through the CPU. Computers that have DMA channels can transfer data to and from devices much more quickly than computers without a DMA channel can. This is useful for making quick backups and for real-time applications.

Some expansion boards, such as CD-ROM cards, are capable of accessing the computer's DMA channel. When you install the board, you must specify which DMA channel is to be used, which sometimes involves setting a jumper or DIP switch.

E-mail this definition to a colleague


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

Related Links

PC system resources reference guide 
Covers IRQs, DMAs, I/O, and memory addresses, as well as system configuration, resource conflicts, and plug and play.

Direct Memory Access (DMA) Channels
Describes DMA channel function and operation, with details on each of the 8 DMA channels. This page is from "The PC Guide".

related categories

Memory

related terms

backup

channel

CPU

DIP switch

expansion board

jumper

main memory

PIO

RDMA

real time

system resource

WDM


webopedia
Give Us Your
Feedback


Shopping
DMA Products
Compare Products,Prices and Stores

Shop by Category:
Hard Drives
1367 Model Matches

Drive Cases
15 Model Matches



JupiterWeb networks:

internet.comearthweb.comDevx.com graphics.com

Search JupiterWeb:

Jupitermedia Corporation has two divisions:
Jupiterimages andJupiterWeb


Legal Notices, Licensing, Reprints, & Permissions, Privacy Policy.

Jupitermedia Corporate Info | Newsletters | Tech Jobs | Shopping | E-mail Offers