The first Hard Disc

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The fist hard disc from IBM company in 1956. This hard disc was able to save only 8 photos.

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2017-13-07 Update

That was the Model 350 disk drive for the 305 RAMAC system. Its capacity was 3.75 megabytes with a 1-second average access time.

Interesting history in Wikipedia:
"The IBM 350 drive had fifty 24-inch (0.6 m) platters, with a total capacity of five million 6-bit characters (3.75 megabytes).[9] A single head assembly having two heads was used for access to all the platters, yielding an average access time of just under 1 second."

Source: https://en.wikipedia.org/wiki/History_of_hard_disk_drives

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Recent Comments

30

Thanks for sharing, Amir.

You're welcome.

Amir - We have seen an amazing leap in technology. Thanks for sharing.

Amazing! But it was only the beginning :)

Yes.

Incredible how everything shrinks

It's amazing!

Impressive in size, but not in memory!
Thanks for sharing, Amir!

You're welcome.

If they knew then how far we would move in such a short time with technology

They won't believe.

We've come a long way

Yup, a long way until today!

That was the Model 350 disk drive for the 305 RAMAC system. Its capacity was 3.75 megabytes with a 1-second average access time..

Interesting history in wikipedia:
"The IBM 350 drive had fifty 24-inch (0.6 m) platters, with a total capacity of five million 6-bit characters (3.75 megabytes).[9] A single head assembly having two heads was used for access to all the platters, yielding an average access time of just under 1 second."

Source: https://en.wikipedia.org/wiki/History_of_hard_disk_drives

Thank you, Bob,
If you let me, I want to add your comment as an update to this blog post. Is it ok for you?

That's fine with me.

Thank you...

Hi Amir, how technology has advanced since then. Irv.

It was amazing at that time.

Interesting. Next came circuitry in development and miniaturization!.

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