Foundations of Computation
Full text: http://www.oercommons.org/courses/foundations-of-computation/view
Basic Computing Using Windows
Full text: https://upload.wikimedia.org/wikipedia/commons/f/f1/Basic_Computing_Using_Windows.pdf
Open Data Structures
Full text: http://www.oercommons.org/courses/open-data-structures-an-introduction/view
Below are OER collections containing a variety of Computer Science related course materials (e.g., readings, quizzes, simulations, assignments, and more).
Search College Open Textbook by subject: Computer Science
Link: http://www.collegeopentextbooks.org/textbook-listings/textbooks-by-subject/computerscience
Search OER Commons for Computer Science materials
Link: http://tinyurl.com/ht7vnuz
Search MERLOT for Computer Science materials
Link: http://tinyurl.com/zfw5erc
SEARCH TIP: OER Commons and Merlot allow you to further limit results by sub-disciplines and material type.