Operating Systems

VMware allows you to run multiple applications and system work loads on one server.  You basically create a virtual computer, by using a computer.

CentOS is a community-driven software effort focused on the goal of providing a rich base platform for other companies to build off of.

Arch Linux allows you to decide what desktop environment you want, explains what components and services to get for your computer.  It allows you do do everything, while getting a kickstart for the job.

Ubuntu includes thousands of different pieces of software, covering about every standard desktop application.

Windows Server is a group of operating systems made by Microsoft that supports enterprise-level management, data storage, applications, and communication.