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Here are the conditions necessary for a deadlock to occur; note that all of them are necessary, and none is suf?cient:
1. ?nite resources: the resources are held in a mutually-exclusive way, and they can be exhausted, causing waiting.
2. hold-and-wait: each thread holds one resource while waiting for another.
3. no preemption: threads only release resources voluntarily. No other thread (or the OS) can force the thread to release its resources.
4. circular wait: we have a circular chain of waiting threads.
Medium term scheduling is form of the swapping operation. This attaches to processes that are in a suspended or blocked state. They are swapped out of real-memory storage until t
what is hashed page tables & explain of there work & figure
Explain the Advantages and Drawback of Multiple Processes Application architected to take advantage of multiple processes will certainly see performance gains. Functions and Fe
What is degree of multiprogramming ? Degree of multiprogramming signifies the number of processes in memory. If the degree of Multiprogramming is steady after that the average
Networks and operating systems have a lot of overlap. In this course, however,we are not going to discuss networking in detail, but rather focus on the networking abstractions prov
is there any difference between the trap and interrupt??
Define semaphore A semaphore is a protected abstract or variable data type that constitutes the classic method for restricting access to shared resources like shared memory in
Gopher Gallery consists of a shopping mall and a cart ride that covers the 150 acre habitat. There are m visitors and n single-person vehicles. Visitors stroll around the mall at t
Define the Jobs which are admitted to the system for processing is called The Jobs which are admitted to the system for processing is known as long-term scheduling.
When programming with threads, there are three very common mistakes that programmers often make: 1. locking twice (depending on the system and type of lock, can cause crashes, h
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