Operating System vs Office Suite

Operating System = the core software of your computer.

It performs many functions and is, in very basic terms, an interface between you and your computer component parts. For example, your monitor, keyboard, mouse, and other parts. It also manages your files and applications.

Office Suite = a collection of productivity applications.

Microsoft Office 2010 (also called Office 2010 and Office 14) is a productivity suite of applications. The production applications you'll find in Office 2010 are as follows: