i have been done graduate in 2005 and also do ielts and get 6.0 band , i want to join computer science course in california university it is possible for me

Hi, Admission is not given on the basis of your undergraduation and IELTS score. You need to take the GRE and score above 1200 atleast if you want admission in this university. Also, i would recommend retaking the IELTS as your score is a bit on the lower end(6.5 band score being the minimum require