Please give the explanation.

to php-webmasters, How him did request like that was done by wordpress?. For example http://domain.com/vircategory/virposting/, In fact virtualcategory and virposting not take the form of direktory or file. Why request this did not put forward the message of the mistake despite direktory or file was not gotten in server? Please give the explanation and the example of the code that in case could be understood by me. thanks, jhal.