Binary, without the headache
A worked guide to number systems, with practice and answers.
Download freePractise number systems, programming and computing fundamentals with tutor-made study packs. The original downloads are free to access without an email; selected extra materials use the clearly marked email-access option.
Choose resources that fit your qualification and check your exam board’s current specification. These materials support practice and are not official exam-board publications. Need help applying a concept? Explore GCSE, IGCSE or A Level Computer Science tutoring.
Study notes, PDF guides, video lessons and community.
Start free. Leave your email for selected extras.
A worked guide to number systems, with practice and answers.
Download freeTrace tables, loops and logic. Six exercises to get you thinking.
Download freeFormulas, references and practical tasks with answers.
Download freeRegister your interest in new resources, lectures or the student community.
Free items need no email. Selected extras unlock in this browser after you submit your email. Original study packs are Markdown files, not official exam-board publications.