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Q. Explain some of the ways an application can use memory via the Win32 API.
Answer: (1) Virtual memory offers several functions that allow an application to reserve and release memory and specifying the virtual address at which the memory is allocated.
(2) A file possibly memory mapped into address space providing a means for two processes to share memory.
(3) When a Win32 procedure is initialized it is created with a default heap. Private heaps is able to be created that provide regions of reserved address space for applications. Thread management functions are offers to allocate and control thread access to private heaps.
(4) A thread-local storage mechanism offers a way for global and static data to work properly in a multithreaded environment. Thread-lock storage assign global storage on a per-thread basis.
What is co-operating scheduling? CPU scheduling decisions may possibly place under the following four circumstances: 1. When process switches from the running state to
How are file sharing and protection implemented? To implement file protection and sharing, the system ought to maintain more file and directory attributes than are needed on a
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Define a linker program A linker program links the program along with other programs required for its execution.
Can you give me assistance on my operating system assignment?
Process States A total of nine states are acknowledged by the UNIX system. They are like as follow: User running Executing
reasons for process termination
Define the “turn-around” time of a user job Turn- around time is total time taken to execute the job.
How does user specify block to be fetched in direct access? By specifying the relative block number, relative to first block in file, which is block 0.
What are the advantages of Indexed allocation? The benefits are a. No external-fragmentation problem b. Solves the size-declaration problems. c. Supports direct access
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