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16 Cards in this Set
- Front
- Back
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The brains of the computer
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The CPU
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CPU Cycle
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Fetch, decode, execute
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Factors that affect performance?
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Clock speed, Number of cores and Cache avaliable.
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What would 2 CPUs do?
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Double the performance
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What is accessed quicker than RAM?
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The Cache
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How many instructions can a CPU process at 1 time?
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1
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The Main Memory
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RAM
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Data transfer speed
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Secondary Storage > RAM > Cache > CPU
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What does ROM stand for
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Read only memory
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What does ROM do
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Deals with the start up procedure making sure everything works.
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Is ROM volatile?
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It is non volatile meaning it remembers what was on it after it loses power
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Fake RAM when enough RAM isn't available.
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Virtual memory
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Removable memory
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Flash Memory
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Examples of flash memory
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Cameras, USB memory sticks etc
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Advantages of virtual memory
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Low cost. portable and removable
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Disadvantages of virtual memory
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Not as fast as RAM, eventually will fail
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