How to record what happens on the computer screen?
As the "Print Screen", but rather as a video instead of just a cliché. I have seen many "how" things uploaded to YouTube showing exactly what is happening on the computer screen of the person. Are just save it with a video camera, or is there a program?
Use CamStudio. It's free, easy to use, and not having an "unregistered version" HyperCam as a flag is http://camstudio.org/ Hope That helps.
