1. Windows 8
1.1. pros
1.1.1. The biggest advantage of Windows is that it provides ready-made solutions that can be implemented by just about anyone who’s ever used a computer.
1.1.2. Microsoft Office is also 100% compatible with any file or document produced in the office space in America.
1.2. cons
1.2.1. while this worldwide operating system is far from trash, it is often not as stable as its Mac or Linux counterparts.
1.2.2. The only other major disadvantage of using Windows in the workplace is that over 95% of all viruses and malicious software are written for the Windows OS.
2. Linux ubuntu 12.10
2.1. pros
2.1.1. Linux, was once the workhorse of behind-the-scenes computing tasks (most of the internet is served up by servers running Linux, for example)
2.1.2. Implementing Linux on an enterprise level can add up to huge savings: the operating system, and almost all of its available software (including the Microsoft-compatible Libre Office) are 100% free.
2.2. cons
2.2.1. Its biggest disadvantage is that its end-users and office workers are often scared of it at first.
2.2.2. Perhaps more difficult is getting other managers or board members to approve the change.
3. bibliography: http://www.mnsgroup.com/news-and-press/mac-windows-and-linux-the-pros-and-cons-of-each-operating-system/ ...
4. today's current os market share
5. Mac OS X
5.1. pros
5.1.1. Mac OS X is still the operating system of choice for graphic artists, designers and most others who work with visual and audio media.
5.1.2. Mac OS is the only commercial operating system that is custom-made to work with Apple’s hardware. This gives it a level of efficiency, power, and stability, which is most important for the workplace.
5.2. cons
5.2.1. Apple has its own set of disadvantages, too. The biggest one is price: Apple computers simply cost much more than your average PC
5.2.2. Apple’s computer platform is often mistakenly thought to be immune from viruses and other malicious software. While it is true that you rarely hear of a Mac that has gotten a virus, they are not immune. Criminals simply don’t write malicious software for Macs very often.