Creative Media Services Consultant helping businesses, non-profits, and individuals overcome the hurdles of cameras, microphones, lights, TVs, projectors, PowerPoint, and more.
Modern Media can be an invaluable tool in communicating your ideals. Nail your audio and video goals with on set best-practices, signal flow analysis, and a run of show planning. Never miss the take again.
Modern Operating Systems have built-in support for screen recording.
Windows: http://winsupersite.com/windows-10/how-use-windows-10s-screen-recording-utility Mac: https://support.apple.com/en-us/HT201066
There are also more powerful standalone applications like Camtasia that are popular, but all allow you to record your screen and an audio source like your computer's microphone.
Hope this helps.
