Hi aspirant,

For bank, you dont need to possess high knowledge of computer. You just need to get knowledge of different ms office applications like ms word, excel, docs, etc. Also you need to have some basic typing skills which you can get easily if you get bit used tow ith ms word.

For applying in bank exams one need to be graduate, minimum requirement is graduation. So you can apply after completion of graduation.

Hppe this is helpful to clear your dilemma.