For UCs, calculate your three GPAs that UCs will use using this calculator:
https://rogerhub.com/gpa-calculator-uc/
For CSUs, use the weighted-capped version of the GPA calculated above, but a semester college course counts as two semesters of courses and grades.
For CPSLO, use the CSU calculation, but include 9th grade courses and grades as well as 10th-11th grade courses and grades.
For CSUs, being in the local area of the campus may help if the campus or CS major is impacted (as noted at Impacted Undergraduate Majors and Universities, 2024-25 | CSU ). Local areas are listed at https://www.calstate.edu/apply/freshman/documents/csulocaladmission-serviceareas.pdf
UCs and CSUs do not consider SAT or ACT scores in admission, although there may be placement uses if you matriculate.