Don't do a degree because you want to get a job out of it. Computer science is not maths, and maths is not computer science, you sound like you think they're almost the same and they are most definitely not. There are many jobs available to mathematicians from banking to accountancy to investing to finance or economics, or even as a programmer or engineer.
If you "have no programming knowledge and very basic knowledge of computers." then it's going to be pretty damn difficult pursuing a degree in computer science. I think the reason why you're thinking of computer science is because of the maths element.
I think Oxidation suggested something good - mathematics with some other subject like computer science. That could be good.
computer science is a cool subject .
it has lots of mathematics
one of the hardest subject in computer science was "computer oriented numerical methods in c "