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什么是大数据
Part 1 什么是大数据
何为大？—数据度量1Byte = 8 Bit1KB  = 1,024 Bytes1MB  = 1,024 KB = 1,048,576 Bytes1GB  = 1,024 MB = 1,048,576 KB = 1,073,741,824 Bytes1TB  = 1,024 GB = 1,048,576 MB = 1,099,511,627,776 Bytes1PB  = 1,024 TB = 1,048,576 GB =1,125,899,906,842,624 Bytes1EB  = 1,024 PB = 1,048,576 TB = 1,152,921,504,606,846,976 Bytes1ZB  = 1,024 EB = 1,180,591,620,717,411,303,424 Bytes1YB  = 1,024 ZB = 1,208,925,819,614,629,174,706,176 Bytes
数据没有方法在可容忍旳时间下使用常规软件措施完毕存储、管理和处理任务