I'd say this question isn't very specific, but PCs definitely use what can be called a "client" OS while servers use a "server" OS.
Yes, as opposed to systems such as those tailored for laptops, tablets and mobile phone platforms.
Windows.
Windows XP
disk operating system
window operating system
There are lots of opinions about these topics. One of them, Windows, is an operating system written by Microsoft which has many levels of power and complexity. It is usually found on personal computers built by many different manufacturers. Windows computers are usually refered to as "PC" which means "Personal Computer" even though the Mac is also a personal computer. "Mac" usually refers to a family of computers built by Apple Inc.. They usually run an operating system, also by Apple Inc. called OSX, the X coming from the tenth operating system released by Apple Inc. Mac computers are able to run the Windows operating system as well as OSX.
An operating system developed by Bill Gates for personal computers. Microsoft Disk Operating System.
yes
MS-Dos
windows
windows by Microsoft
All computers need some sort of operating system.
Microsoft Windows
MS-DOS was the first widely used operating system
no it is not..