The Internet is a dangerous place, seemingly moreso today than it has ever been. Sensible precautions such as Anti-Virus, care with respect to the links you click and caution with email attachments, can make your experience a safer and more enjoyable one. Backups can help, allowing you a degree of surety in recovering your data in the event of a problem with your computer.
A computer is a complicated fusion of physical hardware, operating system, application software and data; managing one is important as it can affect it in functional terms. The problem is that computers often don't seem all that complicated and that can lead people to treat them with a lack of respect. This blog post discusses the physical aspects of caring for your computer.