legally, only apple made computers, but there are "hackintoshes", pcs that use MAC OS X
A computer running Mac OS will be an Apple Macintosh computer.
I have a Mac OS X but I know Mac OS is a computer made by the brand/company, Apple.
No, Mac OS is an operating system. These allow for the controlling of the computer hardware and do not focus on helping people with a certain kind of work.
No. Mac OS is an operating system.
Depends on the os: Linux - Yes Windows - Kind of Mac - No
The name of the computer can be changed in the Mac OS X System Preferences' Sharing section.
None. Mac OS X can only be installed on an Apple () computer.
Windows Vista and Mac OS are types of computer operating systems.
Unfortunately no. The mac OS is specially designed to install on macontosh computers.
Providing the Intel processor is in an Apple Mac computer, and the rest of the computer parts are present too, then Mac OS X can be installed.
If the computer is running Mac OS Lion or higher we recommend the 2011 version.
A desktop uses the same OS as any other computer, Windows, Mac OS, or Linux. Also, I'd recommend Mac OS X if you're getting a new computer. Here's the scoop: if the computer has an  on it, it runs Mac OS. If not, it runs Windows or Linux.