公开课网址

国内：
http://open.163.com/
http://oc.xjtu.edu.cn/
http://www.icourse163.org/course/index.htm#/c
国外：
https://www.udacity.com/courses
https://www.coursera.org/

The Hardware/Software Interface
https://www.coursera.org/course/hwswinterface
High Performance Scientific Computing
https://www.coursera.org/course/scicomp
computer architecture:
https://class.coursera.org/comparch-002/lecture/241