First you must realize what it an Mutex and how does it operate. In amulti-programmed machine with a one processor. One of the largetroubles that you can detect is sharing resources is fraught withdangers. For instance, if two processes at the same time make applyof a varying globaly both held both reading and function on thatvarying, in order to operate and writes is critical. It is mostlyreferred to hyper threading.