Camtasia is a software that lets you create videos of your computer screen or webcam feed in real time. You can choose between recording your entire screen or define just a portion of it to be captured. In addition to producing high-quality video, the software lets you edit your videos once they are recorded. The editing feature includes many advanced options, including video superimposing, brightness adjusting, and video syncing as well as the ability to apply visual effects, such as blur or green screen. Once you've finished editing your video project, you can share it on sites like YouTube, Google, or the hosting site Screencast.
Increasingly, new capabilities trickle down from professional-level software to the consumer category. That includes things like multitrack editing, motion tracking, and advanced color grading. This trend is a boon to nonprofessional movie editors, since the more consumer-oriented software tends to simplify procedures that can be complex in the pro-level software. It also means you'll have more familiarity, should you move up to a professional application.