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Explain Concurrent Sharing
Here a number of programs that may share a file simultaneously. While this is the case, it is necessary to prevent mutual interference among them. There are three types of concurrent sharing:
1. Immutable files: If a file is shared in immutable mode, none of the sharing programs can alter it. This mode has the benefit that sharing programs are independent of one another.
2. Single image immutable files: Here the modifications made by one program are instantaneously visible to other programs. The UNIX file system employs this file-sharing mode.
3. Multiple image mutable files: Here several programs can concurrently update the shared file. Each updating program makes a new version of the file that is different from the version made by concurrent programs.
This sharing mode can just only be used in applications in which concurrent updates and the existence of several versions are meaningful.
Paging supervisor: This part of the operating system built and manages the page tables. If the due to dynamic address translation hardware a page fault occurs exception then
Yes, it can be used, if an accurate clock frequency is not needed. Also, the component cost is low contrast to LC or Crystal.
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How can a parent and child process communicate? A parent and child can communicate by any of the normal inter-process communication schemes (pipes, sockets, message queues, sha
what is data type
The search-based tools initially recognize problem and afterwards suitably give advice on how to correct it. AT Expert from Cray Research is one of the tools being employed for
In which system field does the name of current gui status is there? The name of the present GUI STATUS is available in the system field SY-PFKEY.
Q. Explain the Hard Disk Controller & Floppy Disk Controller with necessary diagrams. Q. Explain Input/Output Techniques (Data Transfer Techniques).
Q. When an object travels with constant velocity does its average velocity during any time interval differ from its instantaneous velocity at any instant? Answer:- No It i
State the Relative addressing The location of data is specified relative to current value of the program counter. This is helpful for specifying location of data which is given
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