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Q. What system calls have to be implementing by a command interpreter or shell in order to start a new process? Answer: In the UNIX systems a fork system call followed by an ex
Define the DosSleep(ms) Function used in the os/2 DosSleep() suspends the currently executing thread for some time interval specified in the ms parameter. If a value of 0 is
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 operations of processes? Process creation A process may create several new processes. The creating process is called as parent process, where as the new proce
problems of procedure
Explain a boot control block A boot control block can have the information required by the system to boot an operating from that partition. If the disk does not have an operati
basic advantage of using interrupt initiated data transfer over transfer under program control without an interrupt
Why is rotational latency usually not considered in disk scheduling? How would you modify SSTF, SCAN, and C-SCAN to include latency optimization? Most disks do not export their
Declare some Applications of Open Source Systems • Finance • Educational • Data Storage and Management • ERP (Enterprise Resource Planning) •File Sharing & FTP
advantages and disadvantages
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