some CPU questions

Hi

Thanks to the kind souls here.

I am reading some articles about HT, and they mentioned about clock cycles. Is there a specific period of time to define clock cycles? e.g. 1 clock = 5 seconds. Or clock cycles is the amount of time taken by each task?

The next thing is, i see P4 2.8A, C, E. I understand that the alphabets represent their "functions".
1. Is there a more technical term to call the alphabets?
2. Also, is there a list of all the alphabets vs their functions?
3. How have of such "alphabets" are there?
4. Are they all the same for all the CPU(perhaps provided that CPU supports that, i mean is it going to be the same, if there is).

some CPU questions

 

 

 

 

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