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Define UnixWare
UnixWare manages resources at the process level. Each resource allocated to the application is actually allocated to the process representing the application. Child processes may inherit data and attributes from the parent process pertaining to system and application settings.IDs, signals, masks, resource limits, nice value, class, and priority for scheduling are among some of the many attributes the child and parent share. In addition, directory information such as root and current working are inherited by the child process.
copy-on-write
KERNEL-LEVEL THREADS (KLT) In this level every thread management is done by kernel .No thread library except an API system calls to the kernel thread facility exists. The kern
The Most comman difference are given below System calls are heavy. While a procedure call can generally be performed in a few system instructions, a system call needs the c
Q. Which of the subsequent programming techniques and structures are good for a demand-paged environment? Which aren't good? Describe your answers. a. Stack b. Hashed symbol
Write a short note on disk structure Modern disk drives are initiate as large one dimensional array of logical blocks where the logical block is the smallest unit of transfer.
Explain about paging? Answer: Paging is a memory-management scheme that permits the physical-address space of process to be noncontiguous. Paging avoids the considerable proble
Basic concepts When a process is to be changed in, the pager guesses which pages will be used before the process is changed out again. Instead of swapping in a entire process,
five major activities on file management in operating system.? Explain it.?
Priority Scheduling leads to the risk of starvation: a process is ready, but never is given the processor. Some preemptive priority schedulers therefore reserve a fraction of the p
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