whereis xinit
If nothing returns, it is not installed.
Yes and no.. Yes - With a lot of tweaking and modifications, it is possible. No - Apple does not permit OS X to be installed on non-Apple hardware. (Though OS X Server can be installed as a VM)
simply type, startx in the command prompt.
The Mac OS X Server software (See links below) can be installed on any modern Apple Mac computer or can be purchased ready installed on a Mac Mini ready to go.
Android X window system is an open source Java implementation of X windows.
X server
If a server has installed it, you can press "y" and type "rtd". If you want to install it on your server. You will have to look for the AMX Mod X plugin.
Many operating systems are used on servers, including Linux, Windows Server, Solaris, FreeBSD, and Mac OS X Server.
It's a command to start the X server for running Linux in graphical mode, if you have any of the desktop environments and/or window managers installed.
They are all operating system.
Unix
In the X Window System, a client-server model is used where the client is typically a graphical application that requests services, such as rendering graphics or handling user input, while the server is the X server that manages the display, keyboard, and mouse. The X server listens for requests from multiple clients, allowing them to draw windows, handle events, and interact with the user interface. This architecture enables applications to run on one machine while displaying their output on another, facilitating remote graphical sessions.
The Xming server is a display server for the X Window System, used in Windows XP and later installments of Windows. It's simplistic nature makes it easy to download.