Posts Tagged ‘media storage’

With ever increasing memory available how much memory a hard drive has can be hard to imagine. Let’s try and put it into an imaginable scale. Most of use are fairly familiar now with how much data goes on a CD – quite a bit. Take an average supermarket CD, that holds 700mb. Let’s use that as our measure.

Starting at the bottom, data is measured in bits and:

8 bits = 1 byte

1024 bytes = 1 kilobyte (kb)

1024 kilobytes = 1 megabyte (mb) – 700 of these on a CD

1024 megbytes = 1 gigabyte (gb) – about 1.5 CDs

1024 gigabytes = 1 terabyte (tb) – about 1500 CDs!

1024 terabytes = 1 petabyte (pb) – about 1.5 million CDs!!!

and there are more after this!

Data storage is getting cheaper thank goodness and will get cheaper still. With our software and data needing more and more of it  that can only be a good thing.