Q: Is my account login universal for this university (single sign-on)
No. Your current account is not integrated into the remainder of all other authentication systems at our university. However, there is a current project which aims to have such a campus wide authenication system in place within approximately a year (as of this writing, August 2007).
While the current account is unique for the OSC systems, you can access these systems from anywhere on campus (and in a more limited manner from outside campus). Please refer to the section titled "How do I log on to the server from my Microsoft Windows PC/Laptop?".