In computer science you will learn how computers work it could be anything from computer languages, software design, or hardware architecture. 

You’ll learn many of the same skills in IT, but your intentions will be different. You’ll become the mediator between the machine and the end user.

CSE is the most demanding branch among students and provides good scope in the future in terms of jobs and placements.

Mostly companies prefer CSE students over IT.

Good Luck!!