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CPU characteristics and their impact on performance - questions

Q1. What units are CPU clock speeds given in?
Q2. What is the main difference between ‘cache’ and ‘RAM’?
Q3. How many processors does a dual-core CPU have?
Q4. Why is ‘word size’ important in a CPU?
Q5. How many ticks of the computer clock does an instruction take to execute?
Q6. Are all processors equal in performanace? Explain your answer.
Q7. How many processors does a quad-core CPU have?
Q8. Why does the material a CPU is made of affect performance?
Q9. What is a register?
Q10. Why do many CPUs inside a computer have a fan attached to the top of them?

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