kartik prakash

• May 24th, 2006

 

General purpose operating system is never time bound.no time limit is specified for completing a process.But real time systems, a time limit is specified for each process to finish.Real systems are of 2 types:soft time real systems and hard time real systems.In soft time real systems,if the process is completed in specified time the the process is accepted and if it is not,then the quality of the process is degraded.In hard time real systems, if the process is completed in the specified time limit, then it is accepted and if not, then the process is simply discarded.

geebs

 Profile Answers by geebs Questions by geebs

• Jul 25th, 2006

 

Hello,

Differences from non real time OS is(i.e. RTOS is)

1.Preemptive priority based scheduling 2.Low interrrupt latency 3.Low context switching(no need to  store and restore  virtual address context) 4.Small and configurable(MicroKernel) 5.Fast 6.No system call overhead 6.Interprocess comunication and synchronisation 7.Multitasking.