Computer courses are no different than any other course. What's the first semester requirement for math? You can graduate high school without taking advanced

Computer courses are no different than any other course. What's the first semester requirement for math? You can graduate high school without taking advanced mathematics, it doesn't mean you're prepared for college-level math in the CS field. Similarly, most high schools offer introductory programming courses. I would expect almost every CS major to have taken these classes prior to being admitted to the major. If you didn't take those courses in high school, there are avenues to acquire that knowledge before taking the CS required courses.