A complete, exam-focused lesson pack for OCR GCSE Computer Science (J277), Component 1.1 Systems Architecture — fully aligned to the specification and ready to teach straight from the download.

Includes:

30-slide PowerPoint covering the CPU, ALU, Control Unit, registers (PC, MAR, MDR, ACC, CIR), cache, clock speed, cores, the fetch-decode-execute cycle, CPU performance and embedded systems — with clear original diagrams throughout
Student worksheet (40 marks) with knowledge recall, diagram labelling, explain, comparison, scenario and exam-style questions using authentic OCR command words
Classroom activity — a paired card-sort and cycle-sequencing task for active retrieval practice
22-question MCQ quiz with four options per question
Complete answer key and mark scheme covering the worksheet, quiz, activity and in-lesson exam practice
Teacher guidance covering lesson duration, prior knowledge, learning outcomes, common misconceptions, differentiation, SEND support strategies, stretch and challenge, homework and assessment opportunities

Everything is print-ready and designed to save planning time while giving students thorough, specification-matched coverage of this core topic.

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