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List the task regions in the Spiral model.
Customer communication - In this region it is suggested to set up customer communication.
Planning - All planning activities are carried out in order to explain resources timeline and other project related activities.
Risk analysis - The tasks needed to calculate technical and management risks.
Engineering - In this the task region, tasks needed to build one or more representations of applications are carried out.
Construct and release - All the essential tasks required to construct, test, install the applications are conducted.
Customer evaluation - Customer's feedback is attained and based on the customer evaluation required tasks are performed and executed at installation stage
what do you mean by starvation?explain in detail
What is co-operating scheduling? CPU scheduling decisions may possibly place under the following four circumstances: 1. When process switches from the running state to
How can the deadlock be prevented-Safe State Safe state : A state is safe if the system is able to allocate resources to each process in some order and still avoid deadlock.
advantages and disadvantages of monolithic and layered approach
Question : a) Consider table 1.0 below, assume the processes arrived in the order P 1 , P 2 , P 3 , P 4 at time shown and need the indicated burst time (both in milliseconds)
What is virtual file system? A Virtual file system switch (VFS) or Virtual file system is an abstraction layer on top of a more concrete file system. The purpose of a VFS
What is the kernel? A more common explanation is that the OS is the one program running at all times on the computer usually known as the kernel, with all else being applicati
What are the benefits of multiprogramming? Responsiveness : Multithreading is an interactive application may permit a program to continue running even if part of it is block
Q. In what circumstances is a token-passing network more effectual than an Ethernet network? Answer: A token ring is extremely effective under high sustained load as no colli
Describe Three major roles of operating systems in business computer systems
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