Many people mistakenly believe that a server is no different from a typical desktop computer. This couldn’t be further from the truth. While almost any computer that meets the minimum hardware requirements can run a server operating system that alone does not make a desktop computer a true server.
Here’s some more information on their differences.
Servers are designed to support multiple users and run a large number of different services and applications. Many small businesses can benefit greatly from the increased capacity, information sharing and security that a server offers. A Desktop is a personal computer that an individual uses for personal or office work. It typically stays on your office desk at the workplace. It has a combination of physical hardware attached, which makes a desktop computer run.
The operating system of a server and a desktop computer is very different. The operating system of a server can handle multiple processes and connections at the same time (depending on the hardware).