Question: what is pb in data?
Answer: Orders of magnitude of data. A petabyte is 1015 bytes of digital information. The unit symbol for the petabyte is PB. The name is composed of the SI prefix peta- (P) composed with the non-SI unit of a byte. 1 PB = 1000000000000000B = 1015bytes = 1000terabytes 1000 PB = 1 exabyte (EB)