Solved CPU instructions one at a time

July 29, 2013 at 07:45:46
Specs: Windows 2008
Can someone explain to me why only instruction can be sent at a time to the CPU? I am not really how it gets there either. I read somewhere about threading. Does have something to do with it? But the information I read just confused me more.

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July 29, 2013 at 07:51:29
Well that's a strange question, akin to asking why a car can only be on one road at a time, or why a toaster can only hold a single piece of bread per slot.

Perhaps a better method would be to tell us how you believe computers do what they do, and why you believe that. From there, we can explain the basic concepts.

EDIT: I should specify I'm assuming a single core without hyperthreading or complex instruction pipelining. Basically, I'm going back to the . . . let's say i386. It's a good foundation, and everything else after that just adds layers of complexity that this forum typically doesn't go into.

How To Ask Questions The Smart Way

message edited by Razor2.3

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July 29, 2013 at 08:30:46
✔ Best Answer
Your premise is mistaken. Instructions can be processed more than just step-by-step, one at a time in a modern computer. For starters, a multiple core processor can process several instructions at once. And then there are other complications such as pipelining, parallel instruction fetching, lookahead, branch prediction, etc.

The inner workings of a modern processor are far too complicated to explain in a forum post; you really need to read a book on the subject.

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July 29, 2013 at 08:56:58
Sorry I am just trying to write something out that I do not really understand. Ok so basically the car thing helped me understand much better. AHH i don't know to ask what I am thinking AHH!!!! But the car thing really helped me understand a lot better. thanks

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