Copyright (c) 2019, Peter J. Denning.
You may make one copy for personal use only.
All other uses require written permission of the author.
|0.1||Introduction to operating systems|
|0.2||Dealing with complexity by levels of abstraction|
|0.3||Map of the levels and objects they manage|
|0.4||Each level is an abstract machine managing a class of OS objects|
|0.5||A brief history of operating systems from around 1960|