IIS: Internet Information Services (IIS) is a Microsoft web server. It “provides a secure, easy-to-manage, modular and extensible platform for reliably hosting websites, services and applications” (Microsoft) so you can host your own sites and servers. It is a flexible web server, and it is used often.

OS x server: OS x server is an Apple software that can do:

• screen sharing
• printer sharing
• file sharing

It is similar to IIS, but Apple made it and its a bit different because it has different creators