What are the components of a process, and what are the parts of a process in the operating system

Program Segments Data Segments Process Control Blocks.

1. Basic system processes: The following table lists a set of basic processes by default after the installation of Windows2000 XP, which are necessary for the operation of the system and are also the cornerstone of the normal operation of the whole system.

2. Additional system processes: In addition to the basic processes in the table, you can often see some other system processes in the process list. Such as: etc.

These processes are not necessary for the system to run, but they are often featured in the list of processes, and they are normal system processes, and you can decide whether to end them or not if you want.

3. User process: For each application running by the current user, it will be displayed in the "Process" and "Application" of Task Manager at the same time. Such as: Wait, these are more familiar to everyone!

Tip: In Windows, after a program is running, other processes may be called to perform operations, thus forming a process tree. When we end a process tree, it means at the same time.

Ends all the child processes to which it belongs. Since the Windows system's own task manager does not have the ability to display sub-processes, we can use third-party software such as Process Viewer for details.

Procedure. Purpose: Describes the function that the process is intended to accomplish.

Data collections. Purpose: The data and workspace required for the execution of the program.

Program Control Block. Purpose: Contains process description and control information. It is the only sign that a process exists.

Process Composition: Static Description: It is composed of programs, data, and process control blocks (PCBs) The role of a PCB:

1 The PCB contains the description information, control information and resource information of the process, which is a concentrated reflection of the dynamic characteristics of the process 2 When a process is created, its corresponding PCB will be created first, and the PCB will be released after the process is completed, and the process will die 3 The system will be based on p....

1. The concept of process: I know that the core concept of the operating system is the process. In fact, the hail process is simply a program that runs in the operating system, and it is the smallest unit of resource management in the operating system.

But a process is a dynamic entity, it is an execution process of a program. The difference between a process and a program is that a process is dynamic, a program is static, a mega exacerbation is a running program, and a program is an executable that is saved on a hard disk.

2. Process structure: It can be composed of three parts: ** segment, data segment, and stack segment. That is, the program, data, and process control block PCB composition. The process control block is the only identifier of the existence of the process, and the system is aware of the existence of the process through the existence of the PCB.