Computers only have a limited amount of space to hold information, so they need to represent information as efficiently as possible. This is called compression. By coding data before it is stored, and decoding it when it is retrieved, the computer can store more data, or send it faster through the Internet. This...

These ‘I can’ statements support assessment of the new primary computing programme of study from Reception to Year Six. The strands covered are programming, e-safety, multimedia, data handling and technology in our lives and is based on Somerset’s eLIM's progression plans. This resource has been produced by eLIM (e...