ubuntu desktop version and server version AND ubuntu16.04 mirror download address

1. The desktop version and server version of ubuntu

Desktop version-for personal computer users, it can perform word processing, web browsing, multimedia playback and game play. It is a multi-purpose operating system customized for ordinary users.
Server version-designed to act as a web server, which can be used to host files, web pages and similar content. If you like tossing the black command window, you can also download this enjoyable.

Desktop version-there is a GUI (graphical user interface), Ubuntu's desktop version comes with Gnome GUI by default, but if you need it, you can also switch to KDE or X.
Server version-no GUI, because the server is not intended for local interaction, so the GUI is not only unnecessary, but also consumes redundant resources of the server. The same is true for other software, such as office software, media player software, browsers, etc.
Desktop version-no LAMP, unless you install it yourself
Server version-contains all the software you need to start hosting the site. LAMP, short for Linux, Apache, MySQL, and PHP, lists software related to web servers.

The desktop version is configured for personal computers, while the server version is suitable for web servers.
The desktop version has a GUI pre-installed, but the server version does not.
The desktop version has installed a lot of software that the server version does not have.
The desktop version lacks Apache, MySQL, and PHP, which are standard configurations in the server version.