Microsoft Windows is by far the most popular operating system for the home and business markets. It's ease of use and history of getting the job done cannot be denied.

With the release of Windows XP, there have been a vast amount of user interface changes to confuse the beginner, however it operates in much the same way once you get past the initial fright factor.

The biggest selling point for Windows, are the commonalities between each version. Microsoft knows that it would cost millions to re-train people if the next version of Windows looked completely different.

Every version of Windows offers very similar characteristics. You'll find the system clock, start button, windows explorer and shortcut keys pretty much the same through every release, so once you know your way around one version, the other versions will look very familiar.

With this very much in mind, the dominance of Windows in the PC market will continue for many years. They have the advantage of being in everybody's homes as well at work. Therefore training in the use of Windows is not an issue, enforcing the popularity of Microsoft Windows in business.

However, the problems with Windows is the very fact it is in everybody's home and at work. It's pretty much considered the defacto standard, therefore stifles competition from Linux and Macs for example, and could quite possibly inhibit innovation in the I.T. arena. Following the Microsoft route may not be the best route to take.