Yo guys, I am a current student at Lancaster (2nd Year) and am in the Computer Science G401 Course.
Basically we get to learn stuff in quite a few subject areas- first year was java, networking (making websites, javascript), some assembly language and software engineering.
Luckily first year they do not make the subject too difficult, bearing in mind that some people do the subject as a minor.
However, work load picks up in 2nd year and you lose your sleeping patterns quite often at end of terms (hence why I am here now taking a break from an assignment due in tomorrow!)
Anything you want to know specifically?