IGCSE Computer Science · Chapter 5
The internet and its uses
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InteractiveThe Internet and the World Wide Web5.1 The internet versus the WWW, a cookie flowchart ordering task, exam-style questions and top tips.Open →
InteractiveBlockchain Explained5.2 Blockchaining, proof of work, cryptography, Bitcoin, Ethereum and Cardano, with an animated payment.Open →
InteractiveCyber Security5.3 Threats and defences, slider labs for DDoS and brute-force attacks, top tips and practice questions.Open →
Extra activities that deepen understanding or give more support. Shown in coursebook order.
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AnimationHow a Website LoadsAnimated six-step journey from typing a URL to seeing the page, with DNS lookups.Open →
Classroom activityDNS Clue StationTeam check-in game. Sequence the DNS cards, enter the code word, get a question.Open →
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