units
Specification point:
i) define the terms bit, nibble and byte
ii) define the terms kilobyte, megabyte, gigabyte and terabyte
iii) Understand that data needs to be converted into binary format to be rocessed 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 place them in the correct order from smalest to largest. It would also be a good idea to be able to identify the most suitable storage capacity for a given scenario.
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Further revision can be found here