Welcome to the Wiki containing a wealth of information required for the theory topics of the Cambridge iGCSE ICT course. Use the links in the list to the left of the screen to navigate between sections of the notes.
How you use this resource is mostly up to you but you will be told to access some of the notes on here by your teacher from time to time.
If you think of a computer system as being a layered model, data and instructions are passed between the different layers to allow the computer system to function and do useful things. In particular this will help you to understand the hardware and software theory topics and visualise how they all fit together to make a working computer system.