9. OCR A Level (H046-H446) SRL3 - 1.1 Input, output and storage devices

Picked one by one from a mixed channel. Transcript check: both title readers certain; 5 of 5 sampled certain picks confirmed by transcript, none failed. Channel rule: Include only the numbered exam-board specification lessons whose titles name OCR or AQA GCSE/A Level (e.g. J277, H046-H446, 7516-7517, 8525) with spec section references. Exclude Knowledge Byte/news commentary, premium promos and pedagogy walkthroughs.

A 6-minute video from Craig'n'Dave: “9. OCR A Level (H046-H446) SRL3 - 1.1 Input, output and storage devices”.

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