"IT Support and Security - Mac, Windows, Unix/Linux"
...I have worked and supported the mac os since 1991, including sw/hw support, troubleshooting, networking, tutoring, and solutions. I have worked and supported the windows os since 3.1 all the way until today's Windows 7. I have been a support technician, network admin and sys admin in cross platform environments with windows, mac, unix/linux...
10+ subjects, including geometry