Notebook computers take up less space than conventional desktop computers. Since they receive their power through batteries, they provide a measure of protection against power failures. If you plan to live on campus but travel home occasionally on weekends it is much easier to transport your computer from school to home and back if it is a laptop. However despite this, the majority of students still buy more traditionally-designed desktop computers. Notebooks have less 3D graphics ability and aren't as good for high-end computer gaming.
Desktop computers are easier to expand.
Professional is available, but buying it means being aware of some issue with it. Windows 95 is still supported. In apartments and dorms, you should purchase renter's insurance for your PC and other valuables to protect against theft. For home owners, make sure your home owners insurance covers the computer. Remember, no surge protector can guarantee it will stop a direct surge from a lightning strike.