One of the biggest actions you can do that will help you graduate sooner is identifying a thesis advisor and topic.  You should start this process before you arrive on campus, as described here.  When contacting Computer Science professors use your new Cal Poly email address since most faculty don’t have access to lists of newly admitted students.

The second major activity you will need to do is register for classes.  The university does not do this for you. If you do not register for any class your admissions offer is automatically rescinded.   The registration process is described at https://registrar.calpoly.edu/registration-overview .  The Degree Progress Report described in the registration overview is not applicable to graduate students.  If you have problems enrolling in classes or issues with pre-requisites, email Leanne Fiorentino <lfiorent@calpoly.edu> prior to your registration appointment.