Download Chapter 2: Operating-System Structures Silberschatz, Galvin and Gagne ©2013 – 9

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Transcript
Simple Structure -- MS-DOS
 MS-DOS was created to provide the
most functionality in the least space
 Not divided into modules
 MS-DOS has some structure

But its interfaces and levels of
functionality are not well separated
 No dual mode existed for Intel 8088

MS-DOS was developed for 8088

Direct access to hardware is allowed

System crashes possible
Operating System Concepts – 9th Edition
2.37
Silberschatz, Galvin and Gagne ©2013