Usability: let your mom try

The YouTube OSFirstTimer channel is dedicated to Diana, a 38-year-old woman who has become a kind of “focus group” when conducting improvised usability testing of various operating systems released in 1984–2013. Teenager Philip, who plays the lead, gives Diana 5 tasks per each operating system, and Diana comments on her difficulties during their execution.

As an example, the latest release, with "testing" the operating system ReactOS: