https://yq.aliyun.com/articles/8069

https://www.youtube.com/playlist?list=PLpf0E99STcQHPOY1dSfwhLtxifxo95CvL

http://zhou23.me/2016/07/21/Dairy/learning-cs/

https://pdos.csail.mit.edu/6.824/schedule.html

http://www.xuetuwuyou.com/course/88

http://www.cnblogs.com/fatsheep9146/category/769143.html