存儲單位

相鄰單位相差21?，記憶時可以此類推

一字節等于八比特

1 Byte = 8 bit

1KB = 1024 B = 21??B

1MB = 1024 KB = 22??B

1GB = 1024 MB = 23??B

1TB =?1024 GB = 2???B

1PB =?1024 TB =?2???B

1EB =?1024 PB =?2???B

1ZB =?1024 EB =?2???B

1YB =?1024 ZB =?2???B

1BB =?1024 YB =?2???B

時間單位

相鄰單位相差103，記憶時可以此類推

毫秒????????1 s = 103 ms

微秒????????1 s?= 10? μs

納秒????????1 s?= 10? ns

皮秒????????1 s?= 1012?ps

長度單位

相鄰單位相差10，記憶時可以此類推

分米????????1 m = 10?dm

厘米????????1 m = 102?cm

毫米????????1 m = 103?mm

微米????????1 m = 10??μm

納米????????1 m = 10??nm

皮米????????1 m = 10??pm

飛米????????1 m = 10??fm

阿米????????1 m = 10??am

仄米????????1 m = 10??zm

幺米????????1 m = 101??ym