Note: Unfortunately the research paper linked in the article is a dead/broken/wrong link. Perhaps the author will update it later.
From the limited coverage, it doesn’t sound like there’s an actual optical drive that utilizes this yet and that it’s just theoretical based on the properties of the material the researchers developed.
I’m not holding my breath, but I would absolutely love to be able to back up my storage system to a single optical disc (even if tens of TBs go unused).
If they could make a R/W version of that, holy crap.
It’s “only” 125 TB. Still a lot, and impressive. But I just hate the stupid click baity ‘petabit’ term. We use bytes GB and TB as a standard, just use the standard term it’s impressive enough.
But then the headline would have to say “Scientists Develop Optical Disc with measly 125TB’s of Storage”
Exclamation marks usually help … and comic sans
I like to express my storage sizes in nibs. I think that makes this a 250 teranib disk.
IMO the whole byte stuff is pretty confusing, people should have just sticked with bits, because that avoids implementation details.
One bit is the smallest amount of information. Bytes historically had different amounts of bits, depending on the architecture. With ASCII and the success of the 8 bit processor word of the Intel 8080/8085 processor, it is now defacto 8 Bit long.
But personally, byte seems a bit (no pun intended) like the imperial measurement system.
Gibibyte is the shit
Agreed. Bits are used more commonly when talking about transfer speeds, and bytes regarding storage.
I feel like I’ve seen bits used for storage on the scientific level since stuff like the pits and lands on a disc are expressed that way. To anyone in CS, you’d regard storage as a discrete whole part in some way. So bytes are fine. But when you’re developing storage, I believe you’d be concerned about bit density. Would need to read the paper though.
Sure, I did say commonly though. So for an article title in popular media you should probably use the common units to be as relatable as possible. But it’s whatever. I guess doing it this way gets people talking, eh.
125 holy cow. drooling
I just want this disc in a DVD-RAM format… It doesn’t have to be extremely fast just readable and writable… I used to love DVD-RAM until 4.25gb became nothing
8 bits in a byte, networks are measured in bits.
Data is stored in bytes (as the minimum size), it’s moved as a bitstream (continuous flow, without regard to individual byte boarders).
Hence storage is measured in bytes, network connections are measured in bits/second.
Are disks though?
I think the last time I saw storage measured in bits was a SNES cartridge.
I think the N64 measured cart sizes in bits too
They’re not even, they’re measured in bits per second. That’s like saying temperature is measured in calories.
We are talking about the size of a unit of data, not how much time elapses for whatever you’re talking about.
There are 8 bits in a byte, regardless if you’re talking about 1Mbps or 1MB/s of transfer speed calculation.
Storage are measured in bytes because data are stored in that form, with an individual bit being meaningless but a single byte often being significant. Network throughputs are measured in bits per second because the time-density of data is the significant thing there, not the total number of bytes transmitted.
There are 8 bits in a byte and there are 9 degrees Rankine in every 5 degrees Celsius, but if I told you the temperature for tomorrow in degrees Rankine, you would still think me weird for saying it that way and you might wonder what I was hiding.
There are almost always dozens of units we could use to describe something, but it’s okay to call it out when someone says something unusually as the original headline did.
I never claimed disks should be measured in bytes… And still with this per second thing which has no bearing on this. How data is stored is irrelevant to how it’s measured in transit. That’s kind of like saying kilometers are measured in kilometers per hour, but a drag strip is a quarter mile. So you’ve lost me on whatever point you’re trying to make there.
The original comment in this thread was about how the article lists the capacity of this experimental disk in bits, and posited that bytes are the usual unit to use.
The next comment was about how networks are measured in bits.
So my replies since then have been about two points, first that bits are still inappropriate to use here even if networks use them, and second that networks use bits per second, which is a different unit than bits.
It’s more like saying speed is measured in kilometers per hour rather than kilometers (point 2) while also saying that the country we’re talking about measures distance in miles usually (point 1).
Gigabytes, or gibibyte? Yes gibibyte is a thing.
As much as i hate to say it, but due to marketting fuckery the usage of byte has ruined it all as a 2TB drive is not 2 * 1024 * 1024 * 1024 * 8 bits but instead 2 terabit ( 2*1000000000 )
Then comes the discussion if “1KB” is 1024 bytes or if 1000 bytes is a kilobyte. If you ask me, 1KB is 1024 bytes. If you ask the people using the kibibytes system, 1KB is 1000 bytes…
Shits fucking complex and fucked up. Cant go wrong if you say it in bits though
“gigibyte” is not a thing, but “gibibyte” is.
Gigibytes are what Gigi stores on her CDs.
My mistake, fixed it :)
Pb is still a standard measurement. While it’s not very standard to use petabit instead of TB for data storage, it’s still a recognized unit.
Yeah “standard” was a poorly chosen word. I meant common, as bytes are much more commonly used for disk storage.
Bits are probably more useful when talking about specialized storage. Byte usually means 8 bits, but doesn’t always need to, and not all data is stored in byte chunks.
A bit is the smallest piece of usable datum, so that makes sense when discussing this technology.
Sorry to be that guy, but in this context byte is strictly defined as 8 bits, never anything else. It’s a strict definition in digital.
While I strongly agree with the idea behind your comment and gave you an upvote, at the physical layer it’s not strictly true - especially for optical discs. See https://en.wikipedia.org/wiki/Eight-to-fourteen_modulation for example.
That said, capacity listings should always be the capacity of the data that can be stored and retrieved as seen by the user, and that data would be in 8-bit bytes.