Technology

58083 readers

3134 users here now

This is a most excellent place for technology news and articles.

Our Rules

Follow the lemmy.world rules.
Only tech related content.
Be excellent to each another!
Mod approved content bots can post up to 10 articles per day.
Threads asking for personal tech support may be deleted.
Politics threads may be removed.
No memes allowed as posts, OK to post as comments.
Only approved bots from the list below, to ask if your bot can be added please contact us.
Check for duplicates before posting, duplicates may be removed

Approved Bots

founded 1 year ago

MODERATORS

ULTRARAM may be a silly name but it's the holy grail for memory tech and means your PC could hibernate for over 1,000 years (www.pcgamer.com)

submitted 1 year ago by ghostBones@lemmy.world to c/technology@lemmy.world

8 comments fedilink hide all child comments

I once speculated to a friend about 15 years ago that eventually solid state storage space would be so fast that it could serve as active memory. I can't wait to tell him.

you are viewing a single comment's thread
view the rest of the comments

[–] Longpork_afficianado@lemmy.nz 0 points 1 year ago (2 children)

My initial thought was that everything would be stored in triplicate, then read in triplicate and 'voted' to the correct value, but I guess even that only extends the time before random bit-flips make the data unreadable. You're probably right on the need for active error checking if there is an intention to store anything long-term in this manner.

[–] Num10ck@lemmy.world 0 points 1 year ago (1 children)

wrapped in gold like a satellite?

[–] lte678@feddit.de 0 points 1 year ago

The gold around satellites are actually very thin layers of mylar, aluminum foil and kapton (a type of golden, transparent plastic) which are used to keep heat inside the satellite inside, and heat outside, outside (See Multi-Layer Insulation). Radiation shielding usually comes from the aluminum structural elements of the spacecraft, or is close to the electronics so you do not waste too much mass on shielding material. Basically, shielding efficacy is most determined by its thickness, so it quickly becomes quite heavy.

[–] lte678@feddit.de 0 points 1 year ago

TMR (so the tripilicate method) wouldn't be super suitable for this kind of application since it is a bit overkill in terms of redundancy. Just from an information theory perspective, you should only have enough parity suitable for the amount of corruption you are expecting (in this case, not a lot, maybe a handful of bits after a year or two). TMR is optimal for when you are expecting the whole result to be wrong or right, not just corrupted. ECC and periodic scrubbing should be suitable for this. That is what is done by space-grade processors and RAM.