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Hard drive history question.

Last response: in Storage
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February 29, 2012 2:42:32 AM

I'm curious does anyone still know why hard drive manufacturers stopped making 5.25in hard drives? Also lets say I have 3.5in 2TB hard drive using 4 platters assuming everything else is the same how much would the same hard drive hold if it was 5.25 form factor?
February 29, 2012 2:53:53 AM

2TB across 4 platters => .5 TB per platter
Area of one 3.5" platter => 38.48 in^2
Areal density => 0.01299224 TB/in^2

Area of one 5.25" platter => 86.59 in^2
Storage capacity per platter => 1.125 TB
HDD capacity => 4.5 TB
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February 29, 2012 3:08:18 AM

Neat any idea why they stopped making them?
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a b G Storage
February 29, 2012 3:23:22 AM

'Cos the worlds getting smaller.
They save more material as the platters get denser and denser. Plus the form factor is more towards cramping more HDDs into a single container for easier transport and bigger volume. Small is beautiful, economical, etc etc... the reasons are too many.
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