推荐回答（4个）
B>KB>MB>GB>TB>PB
B：字节，计算机存储时的基本数字单位
KB：千字节
1KB=1024B
MB：兆字节
1MB=1024KB
GB:千兆字节
1GB=1024MB
TB:1TB=1024GB
1KB
(Kilobyte
千字节)=1024B，
1MB
(Megabyte
兆字节
简称“兆”)=1024KB，
1GB
(Gigabyte
吉字节
又称“千兆”)=1024MB，
1TB
(Trillionbyte
万亿字节
兆兆字节)=1024GB，其中1024=2^10
(
2
的10次方)
B是字节，两个字节一个汉字；完了是KB，1024B是一KB；1024KB是一MB（兆）；1024兆是一GB(纪）；1024纪是一TB(替）。（PB我实在是不知道了，去网上查一查吧。。。。）
KB
，2
的
10
次方
：
1024
BYTE.
MB
，2
的
20
次方
：
1048576
BYTE,
或
1024
KB.
GB
，2
的
30
次方
：
1073741824
BYTE,
或
1024
MB.
TB
，2
的
40
次方
：
1099511627776
BYTE,
或
1024
GB.
PB
，2
的
50
次方
：
1125899906842624
BYTE,
或
1024
TB.
EB
，2
的
60
次方
：
1152921504606846976
BYTE,
或
1024
PB.
ZB
，2
的
70
次方
：
1024
EB.
YB
，2
的
80
次方
：
1024
ZB.
一般我们取1024为1000计算
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