The Linux Information Project has a great write up on 25 Reasons to Switch to Linux.
Businesses, educational institutions, governmental agencies and other organizations around the world are converting1 their computer operating systems from Microsoft Windows to Linux at an increasing pace. They are likewise converting their application programs from commercial software to free software (also referred to as open source software). There are at least 25 reasons for this situation..
Here are a few excerpts from the article :
- Because it is licensed under a free software license, Linux (as well as other free software) is available at no cost. It can be downloaded from the Internet for free, and it can be purchased in disk or box form at trivial cost. One copy can be used on as many computers as desired with no restrictions. This is in sharp contrast to Microsoft Windows, which can easily cost US$100 or more per computer.
- Linux features superior security, including a very low rate of infection by viruses, trojans, worms, spyware and other malware. This is because UNIX and all of its descendants (including Linux) been designed from the ground up with security in mind, rather than having attempts at security tacked on as an afterthought. For example, users do not routinely use the system as the root (i.e., administrative) user, thereby protecting key system files even in the event of a break-in by a malicious intruder. Also, a robust firewall is included in major distributions and it is enabled by default. Another important factor is the free availability of the source code, which allows thousands of people around the globe to search for security vulnerabilities in it.
Read the entire article here..