Rasberry PI
Best Intro:
https://www.youtube.com/watch?v=juHoJYX86Dg
https://www.youtube.com/watch?v=gbJB3387xUw
https://www.youtube.com/watch?v=U7bZWWlqrCo
https://www.youtube.com/watch?v=IbKY-n71XCE
https://learn.sparkfun.com/tutorials/tags/raspberry-pi
https://www.raspberrypi.org/resources/learn/
www.chiark.greenend.org.uk/~sgtatham/putty/download.html
https://www.kadenze.com/courses/creative-audio-programming-on-the-raspberry-pi-i-i
https://en.wikipedia.org/wiki/Raspberry_Pi_Foundation