Everything is free, Good for servers
Limited support for proprietary applications, Not many companies make programs for LINUX.
Apple iphone, Blackberry
More secure than windows due to it UNIX base, Very sleek and clean looking
Less support, Harder to find programs for it
More than 80% of the desktop computers in the world run sort of window operating system.
Tons of program run on it
Power security, SPYWARE, VIRUSES
Window 7 has many improvements. Improved Taskbar, it is much faster than the former window programs, can make quick launch icons.