Asked in Microsoft WindowsWindows XPOperating Systems
What other operating systems exist besides Windows?
July 12, 2012 8:50PM
For personal use the big ones are Windows and Leopard for MacOS (Apple computers). There are a number of Linux flavors which exist. Another OS is ReactOS. That is a free, open source clone of Windows, though it has a long ways to go.
There's a full list of Operating Systems on Wikipedia. Search "list of current operating systems"