what is compression

Question

I want to know everything about compressor

Answer 1

Are you asking about the process of compression or about the device called a compressor?  

 

In the context of mechanics and thermodynamics, compression is the process of reducing the volume of a system.  In the context of gas dynamics, a compressor is a device that increases the static pressure of a flow.  If you want to know everything about a compressor, you need to take a course on air-breathing propulsion as offered in an aerospace engineering department, or a course on turbomachinery as offered in a mechanical engineering department.

 

You really need to state the context of your question so a tutor can give you a relevant answer.