Direct memory access
id:
direct-memory-access-186-11016954
title:
Direct memory access
text:
Direct memory access (DMA) is a feature of computer systems that allows certain hardware subsystems to access main system memory independently of the central processing unit (CPU). Without DMA, when the CPU is using programmed input/output, it is typically fully occupied for the entire duration of the read or write operation, and is thus unavailable to perform other work. With DMA, the CPU first initiates the transfer, then it does other operations while the transfer is in progress, and it final
brand slug:
wiki
category slug:
encyclopedia
description:
Feature of computer systems
original url:
https://en.wikipedia.org/wiki/Direct_memory_access
date created:
2002-06-17T03:38:59Z
date modified:
2024-09-08T09:34:03Z
main entity:
{"identifier":"Q210813","url":"https://www.wikidata.org/entity/Q210813"}
image:
fields total:
13
integrity:
15