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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.
Basic File System Uses the specific device driver. Deals with blocks of data that are exchanged with the physical device. Concerned with the placement of blocks on
what are the main advantages of multiprogramming
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explain simple segmentation
Write a short note on PCB? Every process is represented in the operating system by a process control block also called a task control block. It contains more information regard
Locality of reference entails that the page reference being made by a process Locality of reference entails that the page reference being made by a process is similarly to be
What are the advantages of Contiguous allocation? The advantages are a. Supports direct access b. Supports sequential access c. Number of disk seeks is minimal.
explain any four types of operating system feature and structure(design)
what is segmentation as it refers to operating system
what is the latest OS of ANDROID in US
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