Active directory is not only used to authenticate users, where it's value is derived from is the ability to organized your entire computer network into organizational units and apply custom policies to each of those OUs. Think of this as having a *nix repository for every OU and in this repo there is a custom script to modify
It depends: there is a reaction happening. Does the temp or pressure affect the reaction? If they do, did the engineer get the conversion right?
Of course, God only Smiles on you if you use startx.
Ctrl+Alt+Backspace restarts the XServer in the GUI
Run an iSCSI target for each person you want to store info for. They can connect with their windowz and to them it acts like a slow hd. If you need security add vpn.
Real computer scientists like having a computer on their desk, else how could they read their mail?