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Q. What is the basic function of Assembler ?
Input to an assembler is an assembly language program. Output is an object program and information which enables the loader to prepare object program for execution. At one instance computer programmer had at his disposal a basic machine that interpreted through hardware certain fundamental instructions. He will program this computer by writing a sequence of ones and zeros(machine language) and place them into the memory of machine.
Recall that condition variables are synchronization primitives that enable threads to wait until a particular condition occurs. Generalizing, the combination of locks and condit
Write a note on multithreading. Multithreading is the capability of an operating system to execute different parts of a program called as threads, at the same time. The program
describe main points of multiuser and multi tasking operating systems.
LOOK o Like SCAN except stops moving inwards (or outwards) when no more requests in that direction exist. C-SCAN (circular scan) o Moves inwards servicing requests u
What are two differences among user-level threads and kernel-level threads? Under what circumstances is one type better than the other? (1) User-level threads are unknown by th
System Service Program system service program Supports and provides the services for other program. System service program perform Varity of tasks. They are further divided in
explain in detail about ipc in linux
Write a note on semaphores A semaphore is a tool meant for synchronizing multiple processes trying to access a shared variable. That is a semaphore is used to deal with the cri
Since most of the programs require a lot of memory allocation/deallocation, we expect the memory management to be fast, to have low fragmentation, make good use of locality, and be
reasons for process termination
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