Do you have the option of repeating the Maths module you failed in? It's amazing the difference a year can make, but obviously it's give you more work next year. Or alternatively, the whole year? It might also be worth looking at changing degree course to a related field that might be better suited to you (I know plenty of people that did this). I always assumed you'd end up in one of the engineering fields considering your posts on CPU/GPUs.
Which Universities are we talking about here?
Most universities should have science essay writing guidelines. I remember in my first year I didn't, but I now know that they were available if you inquire. Check the module though, they may have an Introduction lecture/seminar to guide you through the process. I don't think employers really care which modules you take as long as you have the required base knowledge needed and the required grade (usually 2.1 or above if you want to stay in the field). In that respect, the relevancy of your final year project is the only thing they'll probably look at in any detail. So, I'd suggest going for the easier module. I did Japanese in my second year when I know I suck at languages and came to regret the decision.








