[nzlug] Pictures of the first ever HDD

Michael Dittmer michael at inside-job.co.nz
Fri Jan 19 09:01:23 NZDT 2007


Massey Wellington has one of those disk drives still operational in one 
of the PC labs. They use it for teaching computer hardware and history.

Michael


Cliff Pratt wrote:
> Michael Adams wrote:
>> http://news.com.com/2300-1015_3-6110361-1.html?tag=ne.gall.pg
>>
>> IBM RAMAC 50 X 24" (600mm) platters 5MB Capacity circa 1956
>>
> That seems wrong. The first commercial IBM disks had capacities rated 
> in 100MB, and that was spread over a number of platters. That makes 
> each platter hold up to 10MB per side (or less) and that implies an 
> increase of density of only two times in approx 20 years!
>
> Also that disk appears to have lost all its coating so it could not 
> store a single byte!
>
> Anyway, here's some pics....
>
> http://www.staff.ncl.ac.uk/roger.broughton/DASD/200427.htm
>
> http://www-03.ibm.com/ibm/history/exhibits/storage/storage_PH3330.html
>
> Cheers,
>
> Cliff
>
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