IDE is an acronym for Integrated Drive Electronics, which is a hard disk drive interface in which the controller electronics reside on the drive itself, eliminating the need for a separate adapter card. IDE offers advantages such as look-ahead caching to increase overall performance. Although there are a number of uses, the most common interface is between hard disk drives and CD/DVD Rom drives. The original IDE standard supported drives up to 540 MB of data. The new standard, EIDE (Enhanced-IDE), supports drives with over 250 GB of data and allows for data transfer rates over twice as fast as IDE.
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