Hi woyeko, here are some things you may need to know.
FPC is Pascal compiler that runs only in console/terminal. You can use any text editor you like to do the coding and then compile it using FPC.
After you install FPC, you get not only the compiler but you also get a console/terminal mode IDE. You don't have to, but some users will also install Lazarus - the IDE that has graphical form designer to let you build your GUI application easier.
For Linux users, to start the FPC's default IDE:
Linux terminal > type: FP [enter]
For Linux users, to access the FPC's compiler:
Linux terminal > type: FPC [enter]
Note:
I'm a Linux user, not very sure but I think it should be similar on Windows.
Learn more about FPC:
http://wiki.freepascal.org/How_to_starthttp://www.freepascal.org/docs-html/user/userse8.html#x17-240002.5Have fun!