I would like to request to reopen: [What are threads, and what do they do in the processor?][1] 

This question is perfect for SuperUser SE. Computer hardware question that isn't related to buying recommendations can be asked here per [SuperUser FAQ][2]. 

Here is a quote from: [What kind of questions should I not ask here?][3] 

> However, if your motivation is “I would like others to explain ______ to me”, then you are probably OK.

Isn't that what the user is asking? He is asking others to explain what CPU threads are its purpose.

 [1]: http://superuser.com/q/329904/20433
 [2]: http://superuser.com/faq
 [3]: http://superuser.com/faq#dontask