RAM & ROM (OCR A-Level Computer Science): Flashcards
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Practise the cards
15 cards from this deck
What type of volatility does RAM have?
What type of volatility does RAM have?
Volatile - data lost when powered off
What type of volatility does ROM have?
What type of volatility does ROM have?
Non-volatile - data retained when powered off
Typical RAM capacity in high-performance PCs
Typical RAM capacity in high-performance PCs
16 GB or more
Effect of higher RAM capacity on multitasking
Effect of higher RAM capacity on multitasking
Allows more programs to run simultaneously
What ROM stores in personal computers
What ROM stores in personal computers
BIOS
ROM's role in boot process
ROM's role in boot process
Initialises hardware and loads OS
Speed comparison: RAM vs ROM
Speed comparison: RAM vs ROM
RAM is faster than ROM
Data access capability: RAM vs ROM
Data access capability: RAM vs ROM
RAM: read & write; ROM: read-only
Mobile RAM optimisation feature
Mobile RAM optimisation feature
Low-power usage
RAM drawback related to power loss
RAM drawback related to power loss
Cannot be used for permanent storage
ROM security benefit
ROM security benefit
Secure from accidental modifications
RAM capacity for high-performance gaming PC
RAM capacity for high-performance gaming PC
16-32 GB
RAM capacity for smartphone
RAM capacity for smartphone
4-8 GB
RAM amount in embedded systems like washing machines
RAM amount in embedded systems like washing machines
Minimal RAM
Type of ROM that can be updated
Type of ROM that can be updated
EEPROM