The Bachelor of Computer Science or Bachelor of Science in Computer Science (abbreviated BCompSc or BCS or BS CS or B.Sc. CS) is a type of bachelor’s degree, usually awarded after three or four years of collegiate study in computer science, but possibly awarded in fewer years depending on factors such as an institution’s course requirements and academic calendar. In some cases it can be awarded in five years. In general, computer science degree programs emphasize the mathematical and theoretical foundations of computing. ~Wiki