Commit f591f89

@@ -342,10 +342,12 @@ Instructions: Please answer the following questions in about 1-2 pages each.
 
 # Sources:
 
-* [Wikipedia][wiki-von-neumann]
-* [Geeks for Geeks][geeks-von-neumann]
 * [Computerphile][computerphile-von-neumann]
+* [Geeks for Geeks][geeks-von-neumann]
+* [Operating System Concepts][os-book]
+* [Wikipedia][wiki-von-neumann]
 
 [wiki-von-neumann]: https://en.wikipedia.org/wiki/Von_Neumann_architecture
 [geeks-von-neumann]: https://www.geeksforgeeks.org/computer-organization-von-neumann-architecture/
 [computerphile-von-neumann]: https://www.youtube.com/watch?v=Ml3-kVYLNr8
+[os-book]: https://www.os-book.com/OS10/index.html