this post was submitted on 14 Sep 2025
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retrocomputing

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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 (www.tomshardware.com)
submitted 18 hours ago by cm0002@piefed.world to c/retrocomputing@lemmy.sdf.org
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[–] floofloof@lemmy.ca 7 points 12 hours ago* (last edited 12 hours ago)

I like the bit where they wheel in the equivalent amount of data in stacks of punch cards, and the hard drive takes up more space.

(Not fair I know because they didn't show the punch card reader, but the bits on these platters must be ridiculously large.)