The primary Astronomy Department home page can be found at http://astronomy.nmsu.edu . Information relevant to ASTR 110 can be found at http://astronomy.nmsu.edu/astr110
The NMSU Astronomy department has a relatively large number of computing facilities for student and faculty use. This page provides some information about some of the different facilities.
Linux cluster users guide : information on computers, accounts, email, web pages, backups, etc.
At some point in the early 2010's, students pooled their collective knoweldge of useful programs and languages in a series of short lectures. These files are the result of those talks.
example (text file)GNUPlot (Jeff Coughlin)
Beamer makes slide presentations (a.k.a Powerpoint) from Latex. The site starts out with the most basic slides and works to more complicated ones. There are examples for many slide layouts and the code to produce them.
Also, as a bonus, here is a decent page for learning how to make a really nice-looking poster via Latex.