Real Time Operating System
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
computer science crazy
Super Moderator

Posts: 3,048
Joined: Dec 2008
22-09-2008, 09:32 AM

A real time system is defined as follows - A real-time system is one in which the correctness of the computations not only depends upon the logical correctness of the computation but also upon the time at which the result is produced. If the timing constraints of the system are not met, system failure is said to be occurred.

Two types Hard real time operating system Strict time constraints Secondary storage limited or absent Conflicts with the time sharing systems Not supported by general purpose OS Soft real time operating system Reduced Time Constraints Limited utility in industrial control or robotics Useful in applications (multimedia, virtual reality) requiring advanced operating-system features. In the robot example, it would be hard real time if the robot arriving late causes completely incorrect operation. It would be soft real time if the robot arriving late meant a loss of throughput. Much of what is done in real time programming is actually soft real time system. Good system design often implies a level of fe/correct behaviour even if the computer system never completes the computation. So if the computer is only a little late, the system effects may be somewhat mitigated.

Hat makes an os a rtos?
1. A RTOS (Real-Time Operating System) has to be multi-threaded and preemptible.
2. The notion of thread priority has to exist as there is for the moment no deadline driven OS.
3. The OS has to support predictable thread synchronisation mechanisms
4. A system of priority inheritance has to exist
5. For every system call, the maximum it takes. It should be predictable and independent from the number of objects in the system
6. the maximum time the OS and drivers mask the interrupts. The following points should also be known by the developer:
1. System Interrupt Levels.

2. Device driver IRQ Levels, maximum time they take, etc.
Use Search at wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion

Important Note..!

If you are not satisfied with above reply ,..Please


So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page
Tagged Pages: real time system, real time operating system, computer seminar real time operating system,
Popular Searches: real time operating, real time operating system advantages, real time system course, seminar report file in pdf on real time operating system major, real time operating system embbeded in ic, abstract in real time operating system, real time operating system for microcontrollers ppt,

Quick Reply
Type your reply to this message here.

Image Verification
Please enter the text contained within the image into the text box below it. This process is used to prevent automated spam bots.
Image Verification
(case insensitive)

Possibly Related Threads...
Thread Author Replies Views Last Post
  operating sysstem jaseelati 0 139 23-02-2015, 02:25 PM
Last Post: jaseelati
  web operating system seminar jaseelati 0 300 17-02-2015, 02:20 PM
Last Post: jaseelati
  eyeOS cloud operating system full report seminar topics 8 11,398 24-03-2014, 02:49 PM
Last Post: seminar project topic
  Pattern Finding and Pattern Discovery in Time Series PPT seminar projects maker 0 317 25-09-2013, 04:36 PM
Last Post: seminar projects maker
  Answering General Time-Sensitive Queries pdf seminar projects maker 0 364 14-09-2013, 12:53 PM
Last Post: seminar projects maker
  An Introduction to UNIX operating system. study tips 0 374 09-09-2013, 03:14 PM
Last Post: study tips
  Real-time Sign Language Recognition based on Neural Network Architecture study tips 0 512 24-08-2013, 04:35 PM
Last Post: study tips
  An Introduction to UNIX operating system study tips 0 290 24-08-2013, 04:11 PM
Last Post: study tips
  Network Operating Systems ppt study tips 0 261 03-07-2013, 12:39 PM
Last Post: study tips
  Minimizing File Download Time in Stochastic Peer-to-Peer Networks ( Source Code ) study tips 0 442 08-06-2013, 04:05 PM
Last Post: study tips