General computer hardware :
http://www.behardware.com
These are good ressources about embbeded systems and computer architectures:
http://www.professorandpat.org ( This one is more oriented for children learning so it's very easy to understand )
These are good ressources about embbeded systems and computer architectures:
http://www.professorandpat.org ( This one is more oriented for children learning so it's very easy to understand )