1KB=1024B
1MB=1024KB
1GB=1024MB
1TB=1024GB
1PB=1024TB
1EB=1024PB
1ZB=1024EB
1YB=1024ZB
1BB=1024YB
1NB=1024BB
1DB=1024NB
1CB =1024DB
1XB =1024CB
1B(Byte字节);
1KB(Kilobyte) = 2^10 B = 1024 B;
1MB(Megabyte) = 2^10 KB = 1024 KB = 2^20 B;
1GB(Gigabyte) = 2^10 MB = 1024 MB = 2^30 B;
1TB(Terabyte) = 2^10 GB = 1024 GB = 2^40 B;
1PB(Petabyte) = 2^10 TB = 1024 TB = 2^50 B;
1EB(Exabyte) = 2^10 PB = 1024 PB = 2^60 B;
1ZB(Zettabyte) = 2^10 EB = 1024 EB = 2^70 B;
1YB(YottaByte) = 2^10 ZB = 1024 ZB = 2^80 B;
1BB(Brontobyte) = 2^10 YB = 1024 YB = 2^90 B;
1NB(NonaByte) = 2^10 BB = 1024 BB = 2^100 B;
1DB(DoggaByte) = 2^10 NB = 1024 NB = 2^110 B;
1CB(Corydonbyte) = 2^10 DB = 1024 DB = 2^120 B;
1XB(Xerobyte) = 2^10 CB = 1024 CB = 2^130 B。
The Digital Universe of Opportunities .IDC 总的数据量预估是44ZB
美国国会图书馆“在2011年4月前已经收集了235TB的数据









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