Browser
A browser is a program you need to visit websites. The most common are:
http://www.firefoxii.com/ Firefox 2
www.google.com/toolbar/ie7/ Internet Explorer 7
www.opera.com Opera
http://ftp.netscape.com/pub/netscape9/en-US/9.0b/windows/win32/netscape-navigator-9.0b2.exe Netscape Navigator 9
www.apple.com/chde/macosx/features/safari - browser for mac
www.konqueror.org - browser for linux