This list of ITGS past paper questions will help you select a question on the topic of your choice. Great for keeping track of which papers you have revised and which need to be covered.
Quick ITGS revision: Do you know the difference between JPEG, PNG, and TIFF? Revise graphic file formats, lossy compression, and lossless compression.
This ITGS card game is a great tool for revision at the end of topic units or at the end of the course in preparation for final exams.