This document compares proprietary software and free/open-source software across several categories including operating systems, office suites, internet browsers, email clients, photo editors, and drawing programs. Some of the proprietary options mentioned are Windows, Mac OS X, MS Office, Internet Explorer, Outlook, Photoshop, and Illustrator while free/open-source alternatives include Linux distributions like Ubuntu and Debian, OpenOffice, Firefox, Thunderbird, Gimp, and Inkscape.