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Computing

Zara Kanani Inglés 4 fichas

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1What is a CPU?*CPU stands for central processing unit.
*It's a piece of hardware which executes instructions.
*Some of the components are: processor, main memory, cache memory.
2What instructions does the CPU perform?*Fetch-retrieves instructions from the program counter.
*Decodes- the instructions.
*Execute-the instructions.
3What is the clock speed?*It is the speed of which the processor can execute instructions. Measured in Hz.
*A single processor can only execute one instruction at a time.
*Instructions are completed in a clock cycle.
4What is the purpose of the cache?Data from the main memory is loaded onto the cache