Two operating systems are; Windows, and Linux.
Linux
Windows
The two most common systems for server operating are Windows and Mac OS X. These two systems for server operating are widely used and are the most well-know systems.
Operating systems are used in caculators. Operating systems act as a layer between applications and the hardware allowing for smooth operations between the two.
Yes there are some rooted phones that can take two operating systems though they will be too slow.
Unix is one of the operating systems that split into two line only to merge again later. CP/M is another one of the operating systems as well.
For best results: two separate hard drives, if not, two separate partitions. Two separate operating systems and a bootloader capable of loading multiple operating systems are requirements.
Yes. This is called "dual-booting."
yes
Virtual operating system
Windows of course!
You can download free vmware images of operating systems if you search on google. For example there are two good free operating systems, first you can download ubuntu from linux or chrome os.
TVUPlayer runs on the Windows and Macintosh operating systems. There are two different versions so if you have a Windows operating system you will have to download the proper version. It does not work on Windows 7 however.
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.