Computer Science Interactives

Hands-on practice tools for exam-board computer science topics — built to be tried in the browser, worked through at your own pace, and used again before an assessment.

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Available interactives

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Assembly language AS

Trace Table Challenge

Step through genuine Cambridge International 9618 Paper 1 assembly-language programs and complete the trace table exactly as you would on the printed paper — with instant marking, worked explanations, and an exam-style mode.

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Data Transmission Networking AS IB IGCSE

Bits on the Wire

Watch a message leave one computer as binary, cross the cable, and be rebuilt at the other end — under any combination of serial/parallel transmission, simplex/duplex direction, speed, skew and crosstalk.

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For teachers: each interactive is a single self-contained page with no sign-in required. Add this page as a link — for example a Website tab in Microsoft Teams, or a hyperlink on a OneNote page — and it will always point at the current set of resources.