Overview
LINUX

Much of the success of Linux not due to only its outstanding performance, but also by the fact that it is a non-commercial, non-proprietary and an Open Source product. Much like the Internet, Linux brings with it an unparalleled freedom and openness that has not been seen in the computer industry in many years. Now, users are not dictated or hassled by large domineering corporations. No longer are computer users being treated as pawns practices of predatory capitalism. Now, computer users the do not have to be slaves of greed or the whims of a single, domineering corporation. With Linux, there is no "bottom line". Instead, success is measured by performance and design excellence and ofcourse, by the user response.
A survey conducted of Information Technology executives attending the ‘Giga Emerging Technology Scene’ conference concluded that 58 percent of computer users are ready to drop Windows for Linux. The survey also painted Microsoft as the software vendor least trusted to deliver on its promises, and Linux as the platform to which computer users would most likely move.
And then there's the burning issue of price and maintenance-cost. Linux may be downloaded for free via the Internet or purchased for a small fee on CD-ROM. Proprietary operating systems such as Microsoft Windows are extremely expensive, not just initially, but also over time if the cost of software upgrades, hardware upgrades, and lost time and productivity due to crashes and viruses are also taken into account.
Apart from the fact that it's freely distributed, Linux's functionality, adaptability and robustness, has made it the main alternative for proprietary Unix and Microsoft operating systems. IBM, Hewlett-Packard and other giants of the computing world have embraced Linux and support its ongoing development.
http://www.linux.org/
http://www.linux.org/about/
http://en.wikipedia.org/wiki/Linux
http://linuxreviews.org/features/
FreeBSD

FreeBSD is UNIX-like free operating system, descended from AT&T UNIX, derived from BSD, the version of UNIX® developed at the University of California, Berkeley. It is an advanced operating system for x86 compatible (including Pentium® and Athlon™), AMD64 compatible architectures.
FreeBSD offers advanced networking, performance, security and compatibility features today that are still missing in most of the other operating systems, even some of the best commercial ones.
More on Open Source for Common User
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Office work, for any person on the planet would mean Word, Excel and Powerpoint, 3 widely used programs which are a part of the Microsoft Office Suite. It has been around since offices chucked out typewriters and brought in a more superior technology called computers…
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Advantages of going OSS
The advantage of Open Source lies in its very name. It is ‘OPEN’. That means that you can modify each and every part of any Open Source application according to your requirements.
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Open Source Platforms
Much of the success of Linux not due to only its outstanding performance, but also by the fact that it is a non-commercial, non-proprietary and an Open Source product.
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References
http://www.lemis.com/grog/Documentation/CFBSD/
http://www.freebsd.org/about.html
http://www.freebsd.org/features.html
http://en.wikipedia.org/wiki/BSD
http://www.osnews.com/story.php/5106/From-Linux-to-FreeBSD-A-FreeBSD-Review






