Process

Process is the concept most important in operative sistems, the definition of this is the abstraction of a program in ejecution, that others depends of this.

Some of the points importants in process is:

• Proporcional the capacity of operate ocasionality.
• Convert a CPU in some virtual CPUs.
• The process works in miliseconds.
• Instance of a program in ejecution.
• El proceso is the activity that the CPU goes riding the program, having the data of input and the product final.
• The process have a input, output and states.

Creating a process:

The principal events that cause the creation of process:

1. The starting of sistem
2. The ejecution, since a process, of a call of the sistem for the creation of process
3. The petition of user for create a process
4. The start of a work for lots

*Process in a first plane: Is the process that interactive with the users.

*Process in a second plane: Process with a specific function (daemons).