CS2 Memory and secondary storage personal learning checklist

OCR GCSE Computer Science J277 · Paper 1 · Specification 1.2.1–1.2.2

Support your confidence with explanations, workings, diagrams and tested code. Quick checks do not assess a complete program or evaluation.

Name ____________________ Class __________ Date __________

Tick one box per statement. Red: need help. Amber: partly confident. Green: can do independently.

I canRedAmberGreen
Primary storage
Explain the need for primary storage and compare RAM with ROM.
Explain volatility and the role of retained startup instructions.
Compare cache, RAM and secondary storage using speed and purpose.
Explain virtual-memory transfers and their effect on performance.
Evaluate how additional RAM can help a memory-heavy workload.
Secondary storage
Explain persistent storage and distinguish a medium from its reader.
Compare magnetic, optical and solid-state storage mechanisms and uses.
Evaluate capacity and speed for a specified storage requirement.
Evaluate portability, durability and loss risk for portable storage.
Evaluate reliability and cost and justify a complete storage choice.

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