Why we invent the concept of Process? Why   Process is divided into 5  not 6 or 4 states ?

Solution:

① After the emergence of a multiprogramming system we use process to describe the dynamic situation of the internal system and the system activity within the program all multiprogramming operating system are built on the basis of process. The process can clearly depict the inherent law of the dynamic system and effectively manage and schedule the program running into the main memory o