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What are the typical elements of a process image?
User data: Modifiable part of user space. May have program data, user stack area, and programs that might be modified.
User program: The instructions to be executed.
System Stack: Each process has one or more LIFO stacks associated with it. Used to keep parameters and calling addresses for process and system calls.
Process control Block: Info needed by the OS to control processes.
A friend has promised to log in at a particular time. However, he needs to be contacted as soon as he logs in. The shell script checks after every minute whether he has logged in o
Deadlock Detection and Recovery It's a method of permitting the system to enter a deadlock state, detect it and then recover. Deadlock detection : Is the process of
what is ROM bios device driver
What is an operating system process? How is it different from a program? Why do we need the concept of a process, rather than simply talk about programs running in memory? The e
FIFO page replacement algorithm with example
Explain the basic method of paging method. Physical memory is divided into the fixed-sized blocks called frames. Logical memory is as well divided into blocks of the same size
Define multithreading The proficiency of an operating system to execute different parts of a program called threads simultaneously is called as multithreading. A thread is a fl
How can deadlocks be represented? Deadlocks are able to be described in terms of a directed graph called as a system resource-allocation graph. This graph contains of the foll
Worst Fit Algorithm Here we obtain the largest space available for the smallest. Therefore after that process entered there will be much more space remaining. In this space we
Explain the Spawnlp Functions Used in the NetWare Spawnlp(flags, execName, arg0,...) The Spawnlp function is used to load a NetWare executable file (NLM) specified by exec
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