Good luck finding an on-campus computer if it's not really early or really late in the day. Computer lab lines are downright scary, and they strike fear into the hearts of many students desperate to get work done. If you're trying to take a test online at the last minute, you run a serious risk of failing to take it before the deadline if you don't pay more attention to the competition for an open computer. Students with laptops or PCs definitely have an advantage over those who don't because they don't have to worry about crowded labs.
If you need to check your email really quickly, you can use the email stations in the library. But only use them if you're in a hurry and don't want to do anything else online because emailing is all you're supposed to use them for. You might as well just use the computer labs if you plan on doing more than just checking up on messages from your friends. Full-service lab computers have everything a typical PC has, so you can do homework, take tests, kill time on the Internet, or do tons of other things. There are eight open labs on campus, but more exist for certain types of students. Depending on your major, you can use other labs, some with Macs. Open labs like the ones mentioned at the beginning of this section are available for all students regardless of major and are never closed for class use.