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?
- 8 Answers
- 27798 Views
- Bosch, Emulogic, L&T, Qualcomm, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / nithin ganesh
The basic difference b/n a GPOS and RTOS is that
GPOS are Unpredictable while RTOs are predictable &
Deterministic.GPOS uses a Monolithic architecture while
rtos uses a flat memory architecture.Gpos are non scalable
and has larger footprint and higher context switch latency.
Rtos uses priority preempitve scheduling while most gpos
uses round robbin way of scheduling.
| Is This Answer Correct ? | 51 Yes | 7 No |
Answer / sudhir prasad
GPOS:- no time boundation,task hasnt got any time limit to
finish work.
RTOS:- time boundation, task has to complete work within
given time frame. For this preemtive scheduling is must
| Is This Answer Correct ? | 9 Yes | 2 No |
Answer / karthik arjunan
GPOS - General Purpose Operating System
- Examples:- Desktop, Laptops, etc.,
- No time bound
- Practical Example:- if you are watcing movies inthe
desktop, suddenly you want to move the mouse cursor into
some other task means the processor gives the priority to
your mouse not movie player.
RTOS - Real Time Operating System
- Examples:- Washing Machine, Rocket Launching, Lift
Control, Microwave Oven.
- Time Frame. {process within the time frame}
- Practical Example:- Best practical example is rocket
launching. Everyone knows that...
| Is This Answer Correct ? | 9 Yes | 2 No |
Answer / 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 |
Answer / nidhi murthy
RTOS must be light-weight i.e. should not take up too much
memory since embedded systems come with tight memory
constraints. RTOS should support real time operations -
they should have low interrupt latencies. All tasks should
be preemptable.
| Is This Answer Correct ? | 4 Yes | 4 No |
Answer / ash
real time operating system are critical time response while gpos does not need exact time e.g. in launch vehicle we required exact time to launch into the space ...
rtos is scalable . gpos does not have that much capability.
also gpos are less defined priorities ....rtos are flat memory archietectural
| Is This Answer Correct ? | 1 Yes | 1 No |
Answer / achal ubbott
An RTOS is a special case of GPOS.
1. In RTOS every task must have a priority.
2. Pre-emption is a must feature.
3. Priority Inheritance is must otherwise priority
inversion may cause unbounded wait.
| Is This Answer Correct ? | 17 Yes | 25 No |
Answer / rr
GPOS- GP Opertaing System
RTOS -Real Time Operating System
| Is This Answer Correct ? | 22 Yes | 69 No |
What is the state of the processor, when a process is waiting for some event to occur?
What is a Real-Time System ?
Explain the difference between microkernel and macro kernel.
5 Answers Infosys, Tech Mahindra,
When would you choose top down methodology?
What is the difference between Hard and Soft real-time systems ?
11 Answers Google, Hella, Satyam,
What do you mean by deadlock?
If two processes which shares same system memory and system clock in a distributed system, What is it called?
what is the need of creating 4GB of pages in linux?
what are the rules u follow when u r writing critical section of code?
What is priority inversion ? and What is the solution ?
6 Answers Qualcomm, Tandberg, Wipro,
Describe different job scheduling in operating systems.
what is difference between IRQ and FRQ ?
Vxworks 
