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Very detailed version of the specification telling you exactly the things you need to know / be able to do.

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The entire course in video format

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1. OCR A Level (H046-H446) SLR1 - 1.1 ALU, CU, registers and buses

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Full revision guide here.

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Courses and teaching resources for UK computing qualifications

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Here are all the available past papers.

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AS and A Level - Computer Science - H046, H446 (from 2015) - OCR

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OCR AS and A Level Computer Science - H046, H446 (from 2015)) qualification information including specification, exam materials, teaching resources, learning resources

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The entire specification.

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If you want to buy a textbook, this is the best one.

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AS and A Level OCR Computer Science H446 H046 A-Level Course textbook by PG Online KS5 Computing Exam Pass Complete Officially Endorsed Guide OCR Oxford and Cambridge Examination Board A Level

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Buy AS and A Level OCR Computer Science H446 H046 A-Level Course textbook by PG Online KS5 Computing Exam Pass Complete Officially Endorsed Guide OCR Oxford and Cambridge Examination Board A Level Illustrated by PM Heathcote, RSU Heathcote, PG Online (ISBN: 9781910523056) from Amazon's Book Store.

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The free online learning platform for GCSE and A level Computer Science students and teachers. Discover our computer science revision and homework questions today.