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I want to understand how Operating Systems work. Thanks.

I did read the theory of OS by Silberschatz, Galvin et. al. I needed something that had more real-world orientation with source code references.

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To see another way that operating systems (could) have gone, you could read about Niklaus Wirth's Oberon system that Zurich university still uses and develops on. He & Jurg Gutknecht designed/built the system from processor & peripherals to the language and end user applications. Total stack consistency.

* a better motivation: http://ignorethecode.net/blog/2009/04/22/oberon/ * Project Oberon pdf: http://www.inf.ethz.ch/personal/wirth/ * development branch head: http://bluebottle.ethz.ch/

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