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PCBUILD - Personal Computer Hardware discussion List <[log in to unmask]>
Subject:
Re: UDMA66 & PQDI
From:
"Walter R. Worth" <[log in to unmask]>
Date:
Tue, 18 Jan 2000 19:16:29 -0800
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PCBUILD - Personal Computer Hardware discussion List <[log in to unmask]>
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On Tuesday, January 18, 2000 1:11 PM, "Mandi Wilson" <[log in to unmask]>
wrote:

> Is Ultra  ATA/66 the same thing as UDMA66 and what is the U in UDMA?
Ultra?
>
Yes the "U" means Ultra.  Ultra ATA/66 is also known as Ultra DMA/66 and
Fast ATA-2.  Ultra ATA/66 supposed allows host computers to send and receive
data at 66.6 mb/s, which is twice the data transfer speeds of 33.3 mb/s of
the Ultra DMA/33 spec. Hence max disk performance under PCI local bus
environments.  :-)

Walter

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