Hard drive interface question

  User-BDCEDE6F-B9BE-4B7A-91A901FEC5710802 11:25 27 May 2004

If the interface on a hard drive is described
as ATA/100, is this compatible with EIDE?

Apologies for my lack of knowledge on such a simple subject!!

  hugh-265156 12:18 27 May 2004

sometimes its refered to as one or the other but IDE and EIDE are the same thing.

integrated drive electronics and enhanced integrated drive electronics.

as far as i know anyway.i think the enhanced bit means an IDE interface capable of supporting more than one drive.as most of use with modern computers have.

i may be very wrong.

  temp003 12:48 27 May 2004

ATA-100 is an IDE interface. Yes, compatible.

Not that I can unravel the terminology, and it is certainly confusing. But I think ATA and IDE are the same thing. EIDE as a term is now seldom used. It was an improvement over the very original IDE interface, but now we just call them IDE.

The -100 part refers to the max theoretical speed of data transfer of the connection - 100MB/s. More accurately, it should be called DMA-100 or UDMA-100 (you can have DMA-33, 66, 100, and 133).

  SANTOS7 14:40 27 May 2004

IDE (Integrated Drive Electronics--or numerous other interpretations) and ATA (AT Attachment) are one and the same thing: a disk drive implementation designed to integrate the controller onto the drive itself, thereby reducing interface costs, and making firmware implementations easier. This low cost/easy integration created a boom in the disk drive industry, as PC integrators readily ate up the low-cost alternative. Since the late 80's, ATA (as it is properly called) has become the drive of choice for the cost inhibited buyer.

Thanks for clarifying that for me.

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