{"id":24203,"date":"2001-12-31T00:00:00","date_gmt":"2001-12-31T00:00:00","guid":{"rendered":"http:\/\/www.sweetwater.com\/sweetcare\/?p=24203"},"modified":"2007-04-27T00:00:00","modified_gmt":"2007-04-27T00:00:00","slug":"what-dma","status":"publish","type":"articles","link":"https:\/\/www.sweetwater.com\/sweetcare\/articles\/what-dma\/","title":{"rendered":"What is DMA?"},"content":{"rendered":"<p>DMA (Direct Memory Access) is a fast way of transferring data within (and sometimes between) computers. For example, DMA is often used to read data from a LAN adapter board or a Hard Disk Drive and write it directly into a PC&#8217;s memory without having to interrupt the CPU&#8217;s duty cycles. This makes the CPU more available to perform other tasks.PCI (Peripheral Component Interconnect) accomplishes DMA by using a bus master (with the microprocessor &#8220;delegating&#8221; I\/O control to the PCI controller). Ultra DMA (used by all new IDE HDD&#8217;s) allows burst data transfer rates of up to 100MB\/sec, but as only 2 devices may coexist on each IDE channel, it is not likely that this bandwidth is ever used in a conventional setup. <\/p>\n","protected":false},"featured_media":0,"template":"","categories":[],"tags":[],"storecat":[],"itemids":[],"manufacturers":[33300],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<meta name=\"description\" content=\"Check out the What is DMA? page at Sweetwater \u2014 the world&#039;s leading music technology and instrument retailer!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sweetwater.com\/sweetcare\/articles\/what-dma\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is DMA? - SweetCare\" \/>\n<meta property=\"og:description\" content=\"DMA (Direct Memory Access) is a fast way of transferring data within (and sometimes between) computers. 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