The university that you go to will determine how much math you are required to take in order to graduate with a degree. At the university that I go to, Virginia Tech, as an electrical engineer you are required to take multi-variable calculus, differential equations, and then a junior-level math course. This math course can compose of basic group theory, all of the way to vector calculus. As well as the "pure math" course that you have to take, a lot of the materials in electrical engineering will require Fourier and Laplace transforms. Of course, other universities can differ, but no matter where you go, you will have to go beyond basic calculus.
Also, since you want to work on desktop's and laptop's, maybe Computer Engineering might be a better option?