Operating System Programming and Technical

Q. What is a long term scheduler & short term schedulers?

A. Long term schedulers are the job schedulers that select processes from the job queue and load them into memory for execution. The short term schedulers are the CPU schedulers that select a process from the ready queue and allocate the CPU to one of them.

Read Solution (Total 0)

Operating System Other Question

Q. What is cache-coherency?

A. In a multiprocessor system there exist several caches each may containing a copy of same variable A. Then a change in one cache should immediately be reflected in all other caches this process of maintaining the same value of a data in all the caches s called cache-coherency. Q. Explain the meaning of mutex.

A. Mutex is the short form for Mutual Exclusion object. A mutex allows multiple threads for sharing the same resource. The resource can be file. A mutex with a unique name is created at the time of starting a program. A mutex must be locked from other threads, when any thread that needs the resource. When the data is no longer used / needed, the mutex is set to unlock.