Once you have an Internet account, you'll need Internet software to use on it, a Web browser plus a few others you might not be aware of.
For antivirus, personal firewall, and other security software, see my
Antivirus page under
PC maintenance.
I was conflicted about whether discussion of security software belonged here in the Internet software section or under
About PCs. I decided to put it there, because antivirus software is needed even on PCs that never connect to the Internet.