Week 13 at a Glance
Intro:
This chapter we are covering a couple of items, including disk quotas and a windowing system called X. Disk quotas are useful for systems that support a large number of users, or if an administrator is concerned that a runaway program might fill up the hard drive. That being said, I know a lot of Linux systems that don't use quotas at all (I also know a lot of Windows systems that don't use quotas either). It's a good tool for your bag of tricks, in case you need it.
X Windows:
The GUI system we use on Linux has a couple of names. When we installed it, we used the terms KDE and GNOME. However, both of these are just "how" they use the underlying graphical system. That system is called X. The current version is X11 (it's been that way since sometime 1987). There has been some attempts to replace it, but so far nothing has stuck. Ubuntu keeps on trying to replace it.
In my opinion, one of the coolest features of X windows is the ability to run a program on one computer and display it as a window on another. You can have a bunch of GUI programs on your screen, all coming from different computers. This week, you can try this out by starting a couple of programs on our common system.