Here we have 3 systems
1.Database Server
2.Application Server
3.Presentation Server
Database Server:
Is a place where we store all the data
One data base server we have so many application servers
Application Server:
1.Application server act as a mediator in between the presentation and database servers
2.It is temporary memory area
One application server we have so many presentation servers
Presentation Server:
Presentation server means client system(end user)
