As a freshman it is possible to have a 4.8 if you have all honors courses and get a waiver for PE. Yes, we all know that the UC system will only give the extra weighted grade for a maximum of four classes (8 semesters max), and they have to be in your junior and senior year I believe, but that doesn't mean that the high school only calculates the 8 semesters when determining the hs gpa.Again, this would be for freshman and possibly sophomore years if they get the PE waiver, until they have to take computer class etc.