Petabyte (PB)

Even greater than a terabyte is a petabyte, and this is the last memory unit that we will define in this lesson. 1 petabyte is 1024 terabytes, which is one quadrillion. You must be wondering, when are such large storage units used?-- as we usually see units up to terabytes more commonly.

But current technologies employ the use of terribly huge databases, which require even storage capacities in petabytes. One example would be mobile phone networks which transmit over 20 petabytes of data to and from users every day, or Google's servers which process around 24 petabytes of information every day.