Hello student,



No, Both the courses are different from each other .



B.Sc computer science:



It is a bachelors degree course in science along with an additional subject i.e computer science. In computer science you will study some programing language like C,C++ etc.



BCA:



BCA reffers to a professional course in computer field. The course is completely computer dependent. As in this course all subject will be computer related along with some basic subjects like maths , English  etc.



Hope it helps.



Thank you  :)