Home / Open Source Society University Open Source Society University Collection 203.5k stars GitHub Contents Core CS Core math Core applications Advanced CS Advanced math Advanced programming Code of conduct Core CS Core math 2015/2019 solutions 185 updated 1y ago 2010 solutions 2005 solutions 2010 solutions 301 updated 8y ago 2010 solutions 2010 solutions Build a Modern Computer from First Principles: Nand to Tetris Part II one of these programming languages, From Nand to Tetris Part I Build a Modern Computer from First Principles: Nand to Tetris Part II Courses Operating Systems: Three Easy Pieces Courses Core applications Software Engineering: Introduction 217 updated 4mo ago Courses Advanced CS Advanced math high school math high school math chat Advanced programming Learn Prolog Now! 102 updated 3y ago book by Blackburn, Bos, Striegnitz (compiled from source, redistributed under CC license)* high school math [ossu.dev/precollege-math] Code of conduct OSSU's code of conduct 716 updated 5y ago .