i) define the terms bit, nibble, byte
ii) define the terms kilobyte, megabyte, gigabyte, terabyte
iii) understand that data needs to be converted into a binary format to be processed by a computer
Bits, bytes, kilobytes, megabytes, gigabytes and terabytes are all used to describe disk space, data storage or the capacity of system memory.
You need to be able to define each of these different sizes and to place them into the correct order from smallest to largest. It would also be a good idea to be able to identify the most suitable storage capacity for a given scenario.