Computer Science GCSE
Volatility and persistence
What Volatility and persistence means in Computer Science GCSE, as defined for OCR.
Definition of Volatility and persistence
Check what you remember
Read the wording for your board, then hide it and explain Volatility and persistence in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
RAM is volatile and loses its contents when power is removed, whereas ROM is non-volatile and keeps firmware permanently.
Topics that use Volatility and persistence
- Primary storage (memory) (OCR GCSE)
Related terms
- Cache
- Cache size
- Computer start-up sequence
- CPU access to instructions and data
- Page file or swap file
- Primary storage
- Speed and performance
- Start-up and firmware
Using Volatility and persistence in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
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