OPERATING SYSTEM structure types

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SIMPLE STRUCTURE

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MS-DOS and original UNIX operating systems was based on simple structure operating system

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LAYERED STRUCTURE

In this operating system can be broken into pieces where the bottom layer 0 is hardware and the upper layer N is user interface.

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microkernels

this method structures the operating system by removing all nonessential components from the kernel and implementing them as a system and user-level programs.

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MODULES

this is the best current methodology for operating systems design that involves using loadable kernel modules. e.g Solaris OS

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HYBRID SYSTEMS

We explore three hybrid structure design operating systems Mac OS X iOS Android