this post was submitted on 19 Sep 2024
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Indestructible quartz crystal can store 360TB of data for billions of years (www.techspot.com)
submitted 2 weeks ago by BrikoX to c/technology
111 comments fedilink hide all child comments
 

Researchers at the University of Southampton in the UK successfully stored the entirety of the human genome sequence onto an indestructible 5D optical memory crystal no bigger than a penny. The indestructibility claims are no joke since the discs can withstand temperatures up to 1,000°C, cosmic radiation, and even direct impact forces of 10 tons per cm2.

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[–] possiblylinux127 1 points 2 weeks ago (1 children)

It isn't writable

[–] [email protected] 5 points 2 weeks ago* (last edited 2 weeks ago) (2 children)

So? ROM uses checksums too.

[–] [email protected] 4 points 2 weeks ago (1 children)

Say checksum again

[–] possiblylinux127 1 points 2 weeks ago (1 children)

What would be the point? You would just know that the data is invalid. You couldn't fix it

[–] [email protected] 4 points 2 weeks ago (1 children)

Use the checksum to correct the read, just like always. You don’t repair damaged ROM anyway.

[–] possiblylinux127 0 points 2 weeks ago (2 children)

You can't

That's not what a checksum is

[–] [email protected] 2 points 2 weeks ago (1 children)

Don’t make me show you the wikipedia article.

[–] possiblylinux127 1 points 2 weeks ago

Can't argue with that logic.

I guess I will go back to using dd to hack the Pentagon

[–] [email protected] 1 points 2 weeks ago (1 children)

They probably mean EC code? That said, you can use checksums to "correct" errors if you have redundant copies of the data (by reading from the other copy if one copy has a bad checksum)

[–] possiblylinux127 1 points 1 week ago

True but that isn't possible with just a checksum and a read only medium