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Write a short note about process.
Unceremoniously, a process is a program in implementation. A process is too much than the program code, which is occasionally known as the text section. It is as well includes the current activity, as signifies by the value of the program counter and the contents of the processor's registers. Additionally a process generally includes the process stack which contains temporary data as well as a data section which contains global variables.
A program by itself isn't a process a program is a passive entity, for example the contents of a file stored in a disk, while a process is an active entity, with a program counter identifying the next instruction to execute and a set of associated resource.
Forking is an important phase of Unix, critical to the support of its design strategies, which encourages the implementation of filters. In Unix, a filter is a process that reads i
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RESOURCE ALLOCATION GRAPH When a process Pi wishes an instance of resource type Rj, a request edge is inserted in the resource allocation graph. When this request is able to be
what is instant messaging used for
Q. Why is it important to scale up system bus and device speeds as the CPU speed increases? Answer: Consider a system which carries out 50% I/O and 50% computes. Doubling-up
Q. What is the effect of permitting two entries in a page table to point to the same page frame in memory? Describe how this effect could be used to decrease the amount of time ne
Deadlocks can be detected while the program is running, by running cycle detection algorithms on the graph that de?nes the current use of resources. De?ne this graph as follows:
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
What are the most common schemes for defining the logical structure of a directory? The most common schemes for explaining the logical structure of a directory Single-L
Relative file organization A relative file is an array of fixed-length slots and the records can be inserted in the first free slot found from the beginning of the file and
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