Demonstration videos are more straightforward than some other video types, but they are no less important. They often highlight situations where seeing the process visually is clearer than reading about it in text. This may include using a specific tool, setting up a software environment, or even completing organizational or administrative steps for the course itself.
They often epitomize content guiding the medium; these demonstrations are provided as video simply because it is the most efficient and intuitive medium for this specific material.
This video quickly explains how to set up the RStudio IDE for use later in the course.