512 GiB is half a tebibyte. 512 GB is just under 477 GiB.
Comment on Apple reveals M3 Ultra, taking Apple silicon to a new extreme
sugar_in_your_tea@sh.itjust.works 17 hours agoThey’re not wrong. 1000 GB is a terabyte, so 512 GB is over half a terabyte.
It’s exactly half a tebibyte though.
lengau@midwest.social 9 hours ago
sugar_in_your_tea@sh.itjust.works 9 hours ago
Yup.
- 512 GB > 1TB/2 - what article claims
- 512 GiB = 1 TiB/2 - what many assume
- don’t mix GiB and GB
lengau@midwest.social 8 hours ago
Correct. But that means 512 GB is not half a tebibyte.
sugar_in_your_tea@sh.itjust.works 8 hours ago
Ah, correct. RAM used GiB, so I guess I implicitly made the switch.
rottingleaf@lemmy.world 16 hours ago
That’s a retcon of hardware producers using measurement units confusion to advertise less as more.
It’s nice to have consistent units naming, but when the industry has existed for a long enough time with the old ones, seems intentional harm for profit.
sugar_in_your_tea@sh.itjust.works 13 hours ago
That’s not a retcon. Manufacturers were super inconsistent with using it, so we standardized the terminology. For floppy disks were advertised as 1.44MB, but have an actual capacity of 1440 KiB, which is 1.47 MB or 1.41 MiB.
The standardization goes back to 1999 when the IEC officially adopted and published that standard.
There was a federal lawsuit on the matter in California in 2020 that agreed with the IEC terminology.
All of this was taken from this Wikipedia article if you’d like to read more. Since we have common usage, standards going back almost 30 years, and a federal US lawsuit all confirming the terminology difference between binary and decimal units, it really doesn’t seem like a retcon.
rottingleaf@lemmy.world 11 hours ago
OK, fine, all the world might say whatever it wants, but my units are powers of 2.
sugar_in_your_tea@sh.itjust.works 11 hours ago
I prefer it too, but just because “gibibyte” is a stupid word doesn’t mean it’s fine to go against standards.
BorgDrone@lemmy.one 6 hours ago
How is it a retcon? The use of giga- as a prefix for 10^9^ has been in use as part of the metric system since 1960. I don’t think anyone in the fledgeling computer industry was talking about giga- or mega- anything at that time. The use of mega- as a prefix for 10^6^ has been in use since 1873, over 60 years before Claude Shannon even came up with the concept of a digital computer.
if anything, the use of mega- and giga- to mean 1024 is a retcon over previous usage.