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15 Cards in this Set
- Front
- Back
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Q: What does CPU stand for?
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A: Central processing unit
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Q: Give a brief description of what it does.
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A: It takes inputs, processes the data and produces the correct outpout e.g: calculating, typing, screen change etc.
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Q: What is the CPU cycle?
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A: Fetch data
Decode data Exacute instructions |
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Q: Where does the data go after being fetched, and before it can be decoded?
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A: The register (temporary memorary).
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Q: What factors can affect the performance?
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A: Clock speed, number of cores and cache available.
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Q: What is the clock time measured in?
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A: Hertz (which is cycle per second.)
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Q: How many instructions per second is 3gHz?
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A: 3000 million.
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Q: Does the cache need power (is it volatile) and why?
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A: Yes so you can keep memory stored, if there is no power going into it the memory will be instantly lost.
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Q: What does RAM stand for?
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A: Randome Access Memory.
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Q: What does ROM stand for?
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A: Read Only Memory
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Q: Is the RAM volatile?
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A: Yes if you turn off the power and havn't saved your work you will loose it all.
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Q: Give a brief description on what the RAM does.
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A: Program is copied from HD
The CUP then loads the instructions It copies the loading data from secondary storage. |
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Q: Give an example of a Flash Memory and explain why.
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A: - it is non-volatile and can can be transfered.
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Q: When is the virtual memory used?
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A: When the RAM is full and the computer is in need of more memory. So when there is too many complex programs open the RAM relies on the Virtual Memory.
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Q: What are the limitations of a Flash memory?
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A: Over use and over heating the chips be writing and re writing what will be stored in the memory.
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