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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 following:
Pi Rj indicates that process pi has requested an instance of resource type Rj and is waiting currently for the resource. This is called as the request edge.
Rj Pi indicates that an instance of resource Rj has been allocated to process Pi. This is called as the assignment edge.
describe main points of multiuser and multi tasking operating systems.
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
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What is graceful degradation? In multiprocessor systems, failure of single processor will not halt the system, but only slow it down by sharing the work of failure system by ot
Write a Perl script assignGrades.pl to assign letter grades to the students.
Develop a utility in C language which will run in Linux operating systems to display following properties of the system: ? Processor speed ? Ram size ? Computer name ? System time
categorize the CPU scheduling algorithms and among them explain the non-preemptive algorithms..
Hierarchical paging Single way is to use a two-level paging algorithm, in which the page table itself is also paged. A logical address is separated into a page number and a pag
The idea of reference counting is to maintain, for every object, the total number of references to that object, i.e. the number of "incoming" pointers. Whenever the number of refer
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