How does DSLR camera bodies work?

Canon offers a "creative zone" for newbies to understand exposure. Play around with the shutter, aperture, and ISO and click a picture to see what the exposure will look like. Very cool and very helpful.

http://www.canonoutsid​eofauto.ca/play/

I went to the listed web-site. I thought it was kind of cool. After taking my first 'photo', my anti-virus software went crazy. This site appears to have tried to leave cookies, OK; leave software, should have warned me first; edit my registry, most definitely NOT OK. It caused a quarantine and re-boot. I am not claiming it was malicious, but it did over-reach the permissions I grant web-pages to have.

I will retry it now.

EDIT:
I went back to the book-marked site and messed with all the controls, and took four different photographs. The issue did not re-surface. My anti-virus software is NOT balking. My computer seems to be running normally. I have no idea what happened the first time.

Very cool site. Thanks for sharing. Definitely sharing with my friends who I've been teaching how to shoot!