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Explain about threading issues?
The fork and exec system calls
In a multithreaded program of few UNIX systems have chosen to have two versions of fork, one that duplicates each threads and another that duplicates only the thread that raised the fork system call. If a thread raised the exec system call, the program specified in the parameter to exec will change the entire process.
Determine an imperative statement Imperative statement points out an action to be carried out during execution of assembled program
Write a note on the usage of semaphores. Semaphore is a synchronization tool and it is a variable having integer values. It is accessed only by two standard atomic operations w
When a program issues a memory load or store operation, the virtual addresses (VAs) used in those operations have to be translated into "real" physical memory addresses (PAs). This
Problem: Managing Outside Communication. a. What is the principal action we use when communicating through a web browser? b. Give an example of how to preaddress an email
What is input output operation ?
Differentiate pre-emptive and non-preemptive scheduling In a pre-emptive scheduling technique, CPU can be taken away from a process if there is a requirement while in a non-pre
Describe paging technique used in UNIX systems. When a process begin in UNIX, not every its memory pages are read in from the disk at once. In its place, the kernel loads into
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Linked allocation With linked allocation, every file is a linked list of disk blocks; the disk blocks might be scattered anywhere on the disk. The directory has a pointer to th
W hat is hashed page table & method of hashed page table with details
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