Computers often come with a lot of trial edition software for your use (and further purchase if you desire).
While you are associated with UAS, you have the added benefit of access to security software (Symantec Anti-Virus), free (to you)!
Many instructors use Microsoft Office (Word, Excel, PowerPoint, etc.). Unfortunately UAS does not have Microsoft licensing available for students. This software may be purchased from the Bookstore, online, through UA Technology Center or an educational discount software company like Software Express or Creation Engine.