What is a process, and what is the main difference between a process and a program?

A process is a running activity of a program with certain independent functions about a data set.

The difference between a process and a program:

1, the program is an ordered set of instructions, is a static concept, its ability does not have any meaning of operation. The process is a process in the process of processing machine, is a dynamic concept. The program can be used as a software data for long-term preservation, while the process is a certain life cycle, it can be dynamically generated and extinct.

2, the process is a unit capable of running independently, and other processes can be parallel activities.

3, the process is the basic unit of competition computer System limited resources, is also the basic unit of processing machine scheduling.

What is a process, and what is the main difference between a process and a program?