Anti-virus software is a good idea regardless of whether or not a computer connects to the Internet as viruses can spread through CDs and floppy disks as well. This will help prevent a computer from being infected, however, anti-virus software should be updated regularly to detect new viruses.
Firewalls provide a simple filtering of traffic on the Internet coming to your computer. They filter traffic that hackers use to detect weaknesses and security flaws on the computer while still giving users a clear path out to the Internet.
Walters State employs both anti-virus software and a firewall on all computers installed at the college and all off-campus sites.