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Does an Ultra ATA Hard Drive=7200 rpm?
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Does an Ultra ATA Hard Drive=7200 rpm? thefirstwml 12-05-2004
Posted by thefirstwml on December 5, 2004, 6:17 am
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 Hi, I have started shopping for a new laptop, an have noticed
that most laptops have a HD speed of 5400 rpm. The laptop ads that
list a 7200 rpm hard drive have the "Ultra ATA" description beside it.
Does
the listing of "Ultra ATA" automatically mean a 7200 rpm hard drive or
can it mean a 5400 rpm hard drive?

Thanks,

thefirstwml


Posted by J. Clarke on December 5, 2004, 9:48 am
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 thefirstwml wrote:

> Hi, I have started shopping for a new laptop, an have noticed
> that most laptops have a HD speed of 5400 rpm. The laptop ads that
> list a 7200 rpm hard drive have the "Ultra ATA" description beside it.
> Does
> the listing of "Ultra ATA" automatically mean a 7200 rpm hard drive or
> can it mean a 5400 rpm hard drive?

Ultra ATA is the interface, more precisely "UDMA". And it's actually pretty
much a meaningless term. But no, all ATA drives on the market today
support "Ultra ATA". You have to check the speed to be sure you're getting
7200 RPM.


>
> Thanks,
>
> thefirstwml

--
--John
Reply to jclarke at ae tee tee global dot net
(was jclarke at eye bee em dot net)


Posted by Barry Watzman on December 6, 2004, 4:03 am
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No, not necessarily. Ultra-ATA refers to the transfer protocol between
the CPU and drive over the IDE channel. It's unrelated to the
rotational speed of the disk platters. It may well be that most
Ultra-ATA drives are 7200 rpm and/or vice versa, but not such
presumption can automatically be drawn.


thefirstwml wrote:

> Hi, I have started shopping for a new laptop, an have noticed
> that most laptops have a HD speed of 5400 rpm. The laptop ads that
> list a 7200 rpm hard drive have the "Ultra ATA" description beside it.
> Does
> the listing of "Ultra ATA" automatically mean a 7200 rpm hard drive or
> can it mean a 5400 rpm hard drive?
>
> Thanks,
>
> thefirstwml


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