Oxford terms are a bit shorter than most other universities, at 8 weeks each term. However, there is far more work in each of these short terms than you will find at most other places, and the workload can get very intense. The nature of the workload is variable by course - sciences can expect to have several hours of lectures and labs each day, as well as a few hours of tutorials each week, supplemented by many hours of very challenging problem sheets each week; arts tend to have fewer lectures, but about 2 essays per week to write and a large amount of reading to do. The content of Oxford courses is designed to stretch you. Essays and problem sheets take many hours to complete, with problem sheets being practically impossible to get totally correct, even in the sciences. Both are marked by your one of your tutors, and are discussed in tutorials - sessions of 2 or 3 students with a tutor that tend to last for an hour each, in which work and the current area of study are discussed. Each department has its own building separate from the colleges. Your usage of these buildings can vary by course. Many, but not all, courses hold their lectures in their department buildings. They may also provide computers and labs, dependent on the course. Oxford also has an immense collection of libraries - if you need a book, it's fairly likely a copy can be found somewhere in Oxford.