The need for secondary storage (Edexcel GCSE Computer Science): Flashcards
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What secondary storage provides
What secondary storage provides
Permanent storage for programs and data
Volatile storage means
Volatile storage means
Loses data when power is switched off
Non-volatile storage means
Non-volatile storage means
Keeps data permanently without power
Storage type that is volatile
Storage type that is volatile
Primary storage (RAM)
Storage type that is non-volatile
Storage type that is non-volatile
Secondary storage
Why secondary storage is needed
Why secondary storage is needed
Main memory (RAM) is volatile - loses data without power
Faster storage type
Faster storage type
Primary storage (RAM)
CPU access type for primary storage
CPU access type for primary storage
Direct CPU access
CPU access type for secondary storage
CPU access type for secondary storage
Indirect - data must transfer to memory first
Primary storage typical capacity
Primary storage typical capacity
500MB to 8GB
Secondary storage capacity range
Secondary storage capacity range
Up to 4TB or more
What happens when opening an app
What happens when opening an app
Program copied from secondary storage to main memory
What happens when saving work
What happens when saving work
Data transferred from primary to secondary storage
Primary storage duration type
Primary storage duration type
Short-term/temporary
Secondary storage duration type
Secondary storage duration type
Long-term/permanent