What is the difference b/n any GPOS and RTOS?Give suitable
examples or characteristic of RTOS to support your answer.
What changes can be done in a GPOS to make it work like a
RTOS? What basic features will you support, if you have to
design a RTOS?
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Answer Posted / md galib mansoor
GPOS-GENERAL PURPOSE OPERATING SYSTEMS.
RTOS-REAL TIME OPERATING SYSTEMS.
NOW,A/Q
GPOS-TAKES MORE TIME TO RESPOND...JUST LIKE OUR DESKTOPS AND LAPTOPS...AND
RTOS-IT RESPONDS IMMEDIATELY....WITHIN NO TIME WE CAN SAY..
EXAMPLES ARE..
A CARENGINE CONTROL SYSTEM IS A HARD REAL-TIME SYSTEM BECAUSE A DELAYED SIGNAL MAY CAUSE ENGINE FAILURE OR DAMAGE.
AN EXAMPLE OF A HARD REAL TIME SYSTEM IS A DIGITAL FLY-BY-WIRE CONTROL SYSTEM OF AN AIRCRAFT:
NO LATENESS IS ACCEPTED UNDER ANY CIRCUMSTANCES, OTHERWISE THE AIRCRAFT IS NOT CONTROLLABLE.
HEART PACEMAKERS AND INDUSTRIAL PROCESS CONTROLLERS.
ALSO,
RTOS USES PRIORITY PREEMPITVE SCHEDULING WHILE MOST GPOS
USES ROUND ROBBIN WAY OF SCHEDULING.--IN THIS A PROCESS OF HIGHER PRIORITY EXECUTED FIRST,RATHER TO WAIT 4 D OTHER PROCESS TO END..
ANOTHER THING IS DAT...
GPOS USES A MONOLITHIC ARCHITECTURE WHILE
RTOS USES A FLAT MEMORY ARCHITECTURE.
ALSO,
GPOS ARE NON SCALABLE AND HAS LARGER FOOTPRINT(SIZE OF THE EXECUTABLE WHICH IS GENERATEDAFTER COMPILING) AND HIGHER CONTEXT SWITCH LATENCY(A CONTEXT SWITCH IS THE COMPUTING PROCESS OF STORING AND RESTORING STATE OF A CPU SO THAT EXECUTION CAN BE RESUMED FROM THE SAME POINT AT A LATER TIME.
I THINK THIS IS D ANSWER.
| Is This Answer Correct ? | 6 Yes | 2 No |
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