Right, I figured there had to be at least something reliable in the $200AUD. That's about $140USD which won't get you a lot of laptop for that price here in the US but you'll definitely be able to find old MacBooks and Thinkpads that are plenty capable of web browsing, watching HD videos, and completing assignments for an undergrad in Computer Science. In college, that's exactly what I did. I'd buy $100-200USD Thinkpad X-series that were about 5 years old, use them until I couldn't, and then buy another. I'd just swap the SSD to the new Thinkpad and sell the old one, that at least paid for a fresh battery for the new one.