anyone major in Informatics/Computer Science

<p>Is Computer science skill extrmemly important in Informatics?
if i have already taken AP Computer Science A and got a 4 do u think it will prepare me for the first (1st level) CS class in UCI? i am so scared that i will be extremely lost in first CS class there...what should i do to prepare myself before going to UCI??</p>

<p>any info is appreciated!
thanks in advance!</p>