Jason1232

I guess my question is how in depth does your answer need to be? As a real generalized answer it's pretty good. I would maybe add something about Connected then Static Routes. It's possible to manage a network without a routing protocol using just static routes. But routing protocols can definitely make it easier in larger networks. Maybe also mention Route Specificity that when cost is equal and multiple routes are available the decision is based on how specific the route is. The smaller the network the higher priority.

Now, that's useful, that gives me something i can go look into further, so thanks.

The version of the game you have installed is known by steam as a "manifest". Different versions of a game, for example, the English and the French version of the same game, are called "depots", and the game as a whole is referenced by it's "appid".
 
When steam checks for updates, it sends your appid+depotid+manifest version to steams servers. It gets a response telling steam how many - if any - new "manifests" have been released. The manifest itself tells steam exactly what files have CHANGED between manifests, so when an update is released, steam only downloads the files changed between the current manifest, and the newest manifest.
 
You can use steamdb.info to view individual changes between manifests - here for example is the main data file for Fallout 4, showing the full filetree, and the manifests it's included in.
 
I hope this information helps.

nah, thats my office / gaming room, i need a new pc and some rgb's and it will be ready!

Just looked at some phanteks cases and they look PHANomenal