Why paging is used?

Correct Answer: It is a fault tolerance disk driver for Windows NT

Correct Answer: The special thread a dispatcher will execute when no ready thread is found

Correct Answer: In Windows NT, executive refers to the operating system code that runs in kernel mode

Correct Answer: 15 jobs

Correct Answer: Encapsulation, Object class and instance

Correct Answer: In batched operating system the users gives their jobs to the operator who sorts the programs according to their requirements and executes them This is time consuming but makes the CPU busy all the time

Correct Answer: Throughput : number of processes that complete their execution per time unit Turnaround time : amount of time to execute a particular process Waiting time : amount of time a process has been waiting in the ready queue Response time : amount of time it takes from when a request was submitted until the firstresponse is produced, not output (for time-sharing environment)

Correct Answer: A real time process is a process that must respond to the eventswithin a certain time period A real time operating system is an operating system that can run realtime processes successfully

Correct Answer: 1The hardware 2The operating system 3The application programs 4The users

Correct Answer: System calls provide the interface between a process and the operating system System calls for modern Microsoft windows platforms are part of the win32 API, which is available for all the compilers written for Microsoft windows