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Virtual memory is within the hard disk of the computer. It functions in the same way as RAM, but storing open applications when there is not enough RAM. It has a slower access time than the main memory an...

Short answer: 151

Long answer: Students will be used to thinking in denary numbers so I would talk about what denary ( or base 10 ) actually means.

Basically each position is multiplied by 1...

Each digit in binary has a different value, very much the same as the way the three in 32 has a different value than the three in 321. Whereas this goes from 30 to 300, and you multiply by 10 every time, ...

A Primary key is a field in a database that is used as an unique identifier for each record. Therefore the field that is chosen as the primary key has to be something that will be different for every reco...

This is the process of breaking down a problem into sections which become progressively smaller until each module can be written as a singular function. Each module can be tested separately or form part o...