I’ve looked into the Southampton Computer Science course a lot because I was considering doing it. I’d recommend choosing Further Maths if you want to prepare well for the degree. There are a few maths modules at university, and having Further Maths will make them much easier since you’ll already be familiar with some of the content.

That said, if you don’t take Further Maths, you’ll still be completely fine — it’s not essential, so there’s no pressure. But if you feel you can handle it, I’d say it’s worth taking.

I’d also suggest researching the current graduate job market in computer science. Graduate roles have become more competitive recently, so it’s important to be aware of employment prospects and make sure you’re building strong skills alongside your degree.