35340415
Descrição
Mapa Mental por Martin Evemy, atualizado more than 1 year ago
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Criado por Martin Evemy
quase 4 anos atrás
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Primary Storage
- RAM
- Purpose
- Short term memory
- Main place for storing instructions and data whilst a program is being executed.
- Main place for storing instructions and data whilst a program is being executed.
- Part of Fetch, Decode, Execute cycle
- RAM is much faster than a HDD or SSD
- Short term memory
- Volatile
- Can be overwritten
- Purpose
- ROM
- Purpose
- Gives computer instructions on how to start up
- Loads operating system into RAM
- Access built in hardware such as the HDD
- Gives computer instructions on how to start up
- Non Volatile
- Does not lose information when power is turned off
- Does not lose information when power is turned off
- Firmware
- Cannot be overwritten
- Cannot be overwritten
- Purpose
- Differences
- Cache
- Purpose
- Used to temporarily hold data and instructions that the processor is likely to reuse.
- Used to temporarily hold data and instructions that the processor is likely to reuse.
- high-speed random access memory (RAM) which is built into the CPU
- Faster than RAM because it is in the CPU
- Faster than RAM because it is in the CPU
- Purpose
- Virtual Memory
- Purpose
- When RAM is full, small area of secondary storage used as RAM to help
- When RAM is full, small area of secondary storage used as RAM to help
- Purpose
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