How can I see a list of all installed RPMs on my system?

“rpm listing installed rpms”
“list all installed rpms”
“list installed packages rpm”

Viewing a list of all installed RPMs on a system is as simple as typing in rpm -qa . Most probably, you’ll want to see the resulting list alphabetically sorted. You can do that by typing rpm -qa | sort into your terminal.

Where can I find a set of macros or a script for Vim text editor, that will allow me to draw pseudo-graphics easily?

“draw vim macro”

The best place for Vim scripts, tips and documentations is http://vim.sf.net. A simple search, will help you. Here are results which might be helpful.

Where can I find answers to questions in Applied Operating System Concepts by Abraham Silberschatz, Peter Galvin, and Greg Gagne (aka Dinosaur Book) ?

“answers to the applied operating system concepts book”
“applied operating system concepts and answers”

Even if those answers exist outside of that book, there are not (and never were) on my site. The above mentioned book is in my Wishlist, though. So, maybe, few hundred years later I will be able to post them here. :)