Author/Authors :
Nosrati، Masoud نويسنده Young Researchers Club, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran Nosrati, Masoud , Karimi، Ronak نويسنده Young Researchers Club, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran Karimi, Ronak , Hariri، Mehdi نويسنده Department of Law, Eslam Abad Gharb Branch, Islamic Azad University, Eslam Abad Gharb, Iran Hariri, Mehdi
Abstract :
This paper gets into task scheduling in operating systems. Main methods and techniques of scheduling are presented and described in brief. So, with a short introduction containing the description of long-term, medium-term, short term and dispatcher scheduling, main concepts are illustrated. Investigated methods are: FIFO, shortest Job First, fixed-priority pre-emptive scheduling, round-robin scheduling and multilevel feedback queue. These methods are compared in conclusion.