互联网时代，你所不知道的NB含义
最小的基本单位是Byte，按顺序给出所有单位：bit、Byte、KB、MB、GB、TB、PB、EB、ZB、YB、BB、NB、DB，它们按照进率1024（2的十次方）来计算：
1 Byte = 8 bit
1 KB = 1,024 Bytes
1 MB = 1,024 KB = 1,048,576 Bytes
1 GB = 1,024 MB = 1,048,576 KB
1 TB = 1,024 GB = 1,048,576 MB
1 PB = 1,024 TB = 1,048,576 GB
1 EB = 1,024 PB = 1,048,576 TB
1 ZB = 1,024 EB = 1,048,576 PB
1 YB = 1,024 ZB = 1,048,576 EB
1 BB = 1,024 YB = 1,048,576 ZB
1 NB = 1,024 BB = 1,048,576 YB
1 DB = 1,024 NB = 1,048,576 BB
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