window and unix as rtos ?

Discussion in 'General Electronics Chat' started by vead, Jun 20, 2014.

  1. vead

    Thread Starter Active Member

    Nov 24, 2011
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    window and linux are not not real time operating system

    I have read this PDF but I am confused

    look at this pdf file
    there are two statement unix as real time operating system and window as real time operating system

    I don't understand what is the meaning of both statement in this pdf file
    can someone tell me what is this ?
     
  2. nsaspook

    AAC Fanatic!

    Aug 27, 2009
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    The PDF is simply showing why they are NOT real-time operating systems as traditionally configured and what changes could be made to make them into a RTOS.
     
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  3. vead

    Thread Starter Active Member

    Nov 24, 2011
    621
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    I have exam question
    write short notes
    1 window as real time operating system
    2 unix as real time operating system

    I think I have to write about why they are not real time operating system
     
  4. vead

    Thread Starter Active Member

    Nov 24, 2011
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    Both Windows and Unix can not work as real time operating system.

    whats the reason why can't they do this
    I mean what is difference between general os and rtos in terms of hardware and software design
     
  5. nsaspook

    AAC Fanatic!

    Aug 27, 2009
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    Your PDF explains it clearly. Read it, study it, understand it and post a short note of what you understand to be the difference.

    There is no spoon here.
     
  6. vead

    Thread Starter Active Member

    Nov 24, 2011
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    scheduling for rtos and general operating system
    scheduling for rtos - rtos use time sharing architecture where each task assigned small slice of time to execute its instruction before switching to another task

    how general os scheduling is different from rtos scheduling ?
     
  7. nsaspook

    AAC Fanatic!

    Aug 27, 2009
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  8. vead

    Thread Starter Active Member

    Nov 24, 2011
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    RTOS are different from general operating system

    look at this work I have written reason why they are not real time os
    operating system that provide interface between hardware and application software like windows
    operating system design for different uses
    real time used for fast response time
    real time operating system it has guaranteed to respond in certain time

    general operating system vs real time operating system
    1) timing
    2)scheduling
    3)kernel
    4)priority

    1)timing -
    rtos - it is time deterministic
    gp os - it is non time deterministic

    2)scheduling
    scheduling for os .......?
    scheduling for rtos - rtos use time sharing architecture where each task assigned small slice of time to execute its instruction before switching to another task

    3)kernel ues in both RTOS and general purpose OS
    what is difference between both kernel ?

    4)priority - os will run task with their priority
    priority for general os - general os don't follow priority level strictly
    RTOS follow the priority level strictly
     
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