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| Număr de baiți (octeți) | |||||||
|---|---|---|---|---|---|---|---|
| Prefixe SI | Prefixe binare (IEC 60027-2) | ||||||
| Nume | Simbol | Uzual (Nerecomandat) |
Standard SI |
Nume | Simbol | Valoare | |
| kilobait | kB | 210 (1024) |
103 (1000) |
kibibait | KiB | 210 (1024) | |
| megabait | MB | 220 (~1048E3) |
106 (1000E3) |
mebibait | MiB | 220 (~1048E3) | |
| gigabait | GB | 230 (~1074E6) |
109 (1000E6) |
gibibait | GiB | 230 (~1074E6) | |
| terabait | TB | 240 (~1100E9) |
1012 (1000E9) |
tebibait | TiB | 240 (~1100E9) | |
| petabait | PB | 250 | 1015 | pebibait | PiB | 250 | |
| exabait | EB | 260 | 1018 | exbibait | EiB | 260 | |
| zettabait | ZB | 270 | 1021 | zebibait | ZiB | 270 | |
| yottabait | YB | 280 | 1024 | yobibait | YiB | 280 | |
Un petabyte este o unitate de măsură a capacității de stocare a datelor care echivalentă cu 2 la puterea 50 (1,125,899,906,842,624) bytes. Este abreviat cu PB.
- 1,125,899,906,842,624 bytes = 10245 = 250 = pebibyte.