In Aussie all the exams are on computer, you press submit if you want to finish the exam early, or if the time runs out, it submits the answers for you and you instantly know if its a pass or fail.
Surprised its not done like that in the UK, personally I like the old pen and paper way, easier to make notes and highlight certain points on the exam paper, next time I should take a marker pen and scribble all over the computer screen.