Revision Videos
Walk-throughs for every section of OCR A-Level Computer Science (H446) — Paper 1 and Paper 2.
Paper 1: Computer Systems
Section 1.1
The characteristics of contemporary processors, input, output and storage devices
Section 1.2
Software and software development
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Section 1.3
Exchanging data
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Section 1.4
Data types, data structures and algorithms
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Section 1.5
Legal, moral, cultural and ethical issues
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Paper 2: Algorithms & Programming
Section 2.1
Elements of computational thinking
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Section 2.2
Problem solving and programming
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Section 2.3
Algorithms
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