Frankly speaking, even if you have zero knowledge about Computer Science, Bachelor’s in this field will not make you sweat any more than others who have knowledge of this field. I, in no manner, mean to say that this field is tough. Rather, my statement implies that all the prerequisites are covered well by all the colleges I know of. You should be just fine.
Good to have knowledge includes:
- Probability/Statistics
- Algebra
- Calculus
- Any one programming language(prefer C, C++, Java or Python)
Again, all this is not a mandatory requirement, and it is in no way documented by any college that you need to know all this. In case you do wish to get some knowledge on these, go through MOOCs on khanacademy, Coursera, edX etc for these topics.