Comparison between Crystal Report Server XI R1, Crystal Report Server XI R1 , Business objects Enterpirse XI R1 and BOXI R2?

Hello Everybody,

I am new to Business Objects Enterprise. I need to know what is differnce between Crystal Report Server XI R1and Crystal Report Server XI R1 ; Business objects Enterpirse XI R1 and BOXI R2?

As a beginner, it will be very much helpful for me to learn in a better way and to go in the right track.

Thanks in Advance.

Regards,

Annapoorani