Linux vs Windows

In the principle of the comput, exist the Solaris (Sistem operation). Also exist Windows and this killed solaris.
After, was born Linux. Linux is a SO free, that serves for totality movement in the internet and the programs of the comput. Also don't infec of virus, and is very speed.
on the hand, Windows is a SO that picks alot of virus. Is very slow and don't can used many programs.
Windows is the most popular SO, but Linux is the best SO.