Follow along with the video below to see how to install our site as a web app on your home screen.
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You can use Quick Screen Recorder to develop videos to demonstrate features of a new software, for creating movies used in user training, for tracking the progress of a program that executes for a long time, or for recording the sequence of steps that cause the occurrence of bugs in faulty software. You can also speak into the microphone while recording is in progress to include audio with the recorded video.
From what I understand, the most-used software for making screencasts, which is essentially what you want to do, is the open-source camstudio http://www.camstudio.org/
For a list of software for screencasts, check out this wikipedia article.