Linux and FreeBSD are 2 examples
PC-DOS, Apple, UNIX
WindowsMac OS XLinuxFreeBSDNetBSDOpenBSDMS-DOSFreeDOSAmigaOSBeOSMorphOSQNXOS4000VxWorksReactOSDR-DOSSolarisTOSGEMNetWareOpenVMSSyllableHaikuAROSMenuetOSKolibriOSLynuxWorksMulticsSystem/360Unixall of them
complete operating system that works on a desktop computers
A server operating system is an operating system that is designed to run on servers. Some of the operating systems include; Windows, Mac OS, and Linux.
Some operating systems such as Windows XP include uncompress capabilities?
4 generation operating system
Some operating systems that are available with new laptop computers are some more common systems like the following: Windows Vista, and the Vista Ultimate.
HTML is an operating system-independent language.
Yes there are some rooted phones that can take two operating systems though they will be too slow.
Windows, Macintosh
Most operating systems have an on off function, and allow different users to use the computer. Some have hibernation and lock functions.
By operating systems, I am assuming you are referring to computer operating systems. In order to get a good idea of what an operating system entails, I would first recommend that you read the definition at wikipedia. There is also some great information at www.howstuffworks.com.