Analyse the Concept of the Process

Process is one of the most important concepts of "Operating System" course.It is important that we form the concept of process to understand the course.In this paper,fist,I introduce the concept of multiprogram and why introduce the concept.And then I elaborate on the status of the process,the process concept,characteristics,state and its conversion,the difference between the process and procedure.With the development of computer technology,the concept of thread and tube are emerge.Finally,I discuss the differences among process,thread and tube.