Files are stored on a hard drive and are different sizes. In this clip, cartoon dinosaurs are used to demonstrate the size of files. It begins with bits that are made up of 1s and 0s. Eight bits make a byte, 1000 bytes make a kilobyte, 1000 kilobytes make a megabyte, 1000 megabytes makes a gigabyte and 1000 gigabytes make a terabyte.

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Teachers could create a cut and stick worksheet with the names of different sized files. The children need to cut each one out and stick them in order from 1 bit to 1 terabyte.