Try as I might, as an old history teacher turned computer science teacher, I can’t help sprinkling in a few history lessons now and then. We talked about the Y2K bug (history to my students all born around 2004/5) a couple of weeks ago. And this week I had some of my students watch Crash Course’s video on the history and development of Keyboards and Command Lines.
Crash Course Keyboard & Command Line Interfaces gives students an overview of the origins of keyboards and keyboard layouts beginning with early typewriters. If you’ve ever wondered why we use QWERTY keyboards, this video answers that for you. After explaining the development of keyboards the video goes on to explain how early computers functioned with tape and punch cards. Finally, the video explains to viewers how command line interfaces came to be when computers became powerful enough to handle multiple processes and interact user input.