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What is semaphores?
A semaphore 'S' is a synchronization tool which is an integer value that, apart from initialization, is accessed only by two standard atomic operations; wait and signal. Semaphores can be used to deal with the n-process critical section problem. It can be also used to solve lots of Synchronization problems.
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Discuss the advantages of automatic switching systems over manual switching system. Automatic switching systems have some advantages over the manual exchanges: 1. In a manua
Make a page translation table the meets the requirements of the virtual memory system given below. Suppose page (and frame) sizes of 20 with pages 0 by 3 in logical memory and fra
Intentional hacking helps in maintaining better security Several companies employ professionals as security specialists whose basic job is to detect and cover loopholes in t
The session support can be turned on automatically at the site level, or manually in every PHP page script: * Turning on session support automatically at the site level: Set s
Sometimes you may need to run scripts which have plotting commands without displaying the plots and without going into the script to comment out the commands. An example: if you're
Q. Create an input buffer ? CODE SEGMENT ... MOV AH, 0AH ; Move 04 to AH register MOV DX, BUFF ; BUFF must be defined in data
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A message is a string of bytes that has meaning to the applications that use it Message = Header(s) + Application Data A message having of a header and the attached applicat
Explain advantages and disadvantages of a active document. The advantage of an active document over a dynamic document lies in its capability to update the information contin
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