The major and the university are not the same choice
Searching only the words "computer science" misses majors a student would actually want. Electrical engineering and computer sciences, computer science, and computer science and engineering are three different names for undergraduate computing at Berkeley, Los Angeles, and San Diego.
Each one sits in an engineering college on that campus: Berkeley Engineering, UCLA Samueli, and the Jacobs School of Engineering at UC San Diego. The university name does not tell you which college teaches the major.
What to compare before a ranking
Compare the department's name, the college inside the university, and the fact that these campuses share the University of California application. That shared calendar is different from most private universities. It still changes by year, so this page does not turn it into a deadline.
Berkeley's EECS page tells prospective students to select that major on the UC application. Other campuses publish their own instructions. Read the department page for the major you mean.
Program
Electrical Engineering and Computer Sciences
University of California, Berkeley
Berkeley, CA · Bachelor's program
Follows the University of California application calendar
UC Berkeley teaches undergraduate computer science through electrical engineering and computer sciences, in the city of Berkeley.
Program
Computer Science
University of California, Los Angeles
Los Angeles, CA · Bachelor's program
Follows the University of California application calendar
UCLA's undergraduate computer science major is in the engineering school on the Los Angeles campus.
Program
Computer Science and Engineering
University of California, San Diego
La Jolla, CA · Bachelor's program
Follows the University of California application calendar
UC San Diego offers undergraduate computer science and engineering from its campus in La Jolla.