Microsoft Office runs off a server?

So another crazy piece of knowledge from the little world of my IT manager.

So apparently we are running the "client-server" version of Microsoft Office.

In one instance he was complaining that Word was taking a while to load, so he was blaming the network. Later on during a meeting, he was going on saying we have the "client-server" version of power point. Yea, ooooooook lol. Whatever he's on, I want some.