hey,

under arts to go in computer science field you can go for BA in computer science which is a under graduate course of 3 years and once can pursue it right after their 12th grade this is streaming much now a days ,by doing this you can get a job as a IT consultant ,information system ,cyber security and many more.

for science stream there are a lot of course for which you can go like applied computer science ,coding , computer science engineering ,bsc in computer science and many more.
Good luck!