Aside from the really important OSes: Mac OSX, the multitude of Linux varieties, Unix, PalmOS, the Blackberry's proprietary OS, DOS, the console on your microwave or VCR...
...I'd have to say the one "Other" operating system you should pay attention to would be Microsoft Windows Vista. It will be remembered as the one true OS that crippled Microsoft's death-grip over the OS market.
Vista can network with other operating systems, as long as they support Samba.
Operating Systems Not Created By MicrosoftMac, Apple, and Linux are operating systems that were not created by Microsoft.
If the PC is made by Apple then the current Apple operating system is 100% compatible. Other PCs with other operating systems will have varying degrees of compatibility with the current Apple operating system.
Windows, Linux, Mac OSX are currently the three most popular computer operating systems. Other operating systems are Solaris, BeOS, Google Chromium os, and many more.
Virtual operating system
Yes that way information can be sent to other computers that may use different operating systems
Embedded operating systems cannot be replaced with other operating systems. embedded system are designed for dedicated applicationembedded system are tailored to specific application.
Windows Server is an example of a client/server network operating systems and Cisco IOS is an example of a router NOS. There are other network operating systems out there.
Windows, mac, linux
When you network operating systems you will have the benefit of both operating systems. You have to ensure both systems are compatible before networking them.
cause its your operating system without it your computer wont operate at all.
Of course. Any piece of software which calls itself an 'operating system,' such as UNIX, is independent of all other operating systems.