IBM announced the world’s first HDD, the 3.75MB RAMAC 350 disk storage unit, 69 years ago today — unit weighed more than a ton, 50 platters ran at 1,200 RPM

[Kent Madsen]

IBM announced the world’s first HDD, the 3.75MB RAMAC 350 disk storage unit, 69 years ago today — unit weighed more than a ton, 50 platters ran at 1,200 RPM https://share.google/sbJOtzYogk9u23OGm

[Wayne]

The mind boggles...


On 9/14/25 1:56 PM, Kent Madsen wrote:
> IBM announced the world’s first HDD, the 3.75MB RAMAC 350 disk storage unit, 69 years ago today — unit weighed more than a ton, 50 platters ran at 1,200 RPM https://share.google/sbJOtzYogk9u23OGm <https://share.google/sbJOtzYogk9u23OGm>
>
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