Homes, dorm rooms and offices have desktop computers. No matter where you live, you must own a computer to really be connected. Buying one is not the easiest thing in the world, but the information below will help. Ensure your computer comes with an anti-virus program. If you do not run an antivirus program, your computer could be compromised by malicious software. The software steals information and slows down your computer. A lot of programs are out there to regularly scan and repair if you want. Get a computer that will be powerful enough to do the things you want it to do while also being affordable. Many people get high end machines that are not only beyond their budget, they have features that are unnecessary and will never be used. You can pay much less if you are careful about the components and features you choose. Check to see that the computers fan is legitimate. Usually it is pretty easy to take the case off and then just spray the dust away with compressed air...