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"
Windows is an operating system?
OSX BSD Linux Microsoft Windows DOS OS/2
If you are asking whether there is a newer version of Windows Movie Maker for XP operating systems, the latest version is v2.1.Newer version of Windows Movie Maker do exist (such as v2.6 and Windows Live Movie Maker) but they are only for Vista operating systems.
The Open Home operating system does not exist and no results can be found for it. The main operating systems are Windows, Linux and Mac OS. An open home operating system may be a computer without an operating system.
Applications require the common services provided by operating systems in order to interact with the hardware.
Computers need some kind of operating system; the most widely used is windows (from Microsoft). Other systems exist as well, such as Linux.
There are a few operating systems. Typical examples for home PCs include: Windows, in it's many versions. Mac OS (like OS X). There are many versions of Linux, like Debian, Red hat, and Slackware, Suse and FreeBSD Other operating systems exist for things like mainframes Unix (on which Linux is based) is one. Many other proprietary systems exist as well. A more in depth treatment can be found here:
There is: Windows Ubuntu Kubuntu Edubuntu Xubuntu Applemac ----
It usually is, but may exist in a different form in some operating systems.
there are many operating systems are used around the world.there are mainly 10 os's.many service packs are creteated by using this operatingsystems.the service packs are developed by use of the company purpose.
Both Windows and the iPhone OS are operating systems in which they provide an interface between software and hardware, but that's where the similarities end. The iPhone OS is designed specifically for Apple's iPhone, iPod Touch, and iPad mobile devices, and runs a modified Darwin Linux kernel. The same base operating system (Darwin) is also found on the Mac OS X operating system, albiet modified for use on a personal computer. The iPhone OS is also designed to be run on a system that contains an ARM processor. It currently cannot be run on any other system, except the iPhone Simulator contained within the iPhone SDK. The Windows family of operating systems is a more generalized operating system designed primarily for consumer desktop and laptop computers, although specialized versions for mobile phones and other embedded devices exist. Unlike the iPhone OS, Windows is able to be run on a wider variety of processors including Intel, AMD, and in the case of older Windows operating systems; PowerPC, Alpha, and MIPS processors.
Operating systems supervise the low-level operations of the hardware of the machines they run on. They make use of CPU features, such as privilege levels and dynamic address translation, which exist primarily to support the operating system. As a result, operating systems are inherently architecture-dependent.
If you are talking real world (and not some game) then we have no evidence that Aliens exist so we can not tell you where they come from.