Question 1 a) Does a computer need an operating system to execute application pr
ID: 3641942 • Letter: Q
Question
Question 1a) Does a computer need an operating system to execute application programs?
b) What are three objectives of an operating system design?
c) What are the services provided by a typical operating system?
d) Name as many different OSs as possible
Question 2
a) What is the kernel of an OS?
b) Why is a user mode and kernel mode considered good operating system design?
c) give an example OS structure with a kernel.
Question 3
a) Explain why operating systems evolved from simple batch systems to multiprogrammed batch systems.
b) Explain why operating systems evolved from multiprogrammed batch systems to time-sharing systems.
Question 4
a) Explain how an operating system gets loaded in the computer
Explanation / Answer
a)not reqired b)convinience,efficiency,ability to evolve c)they always provide good services which will be satisfied by the users such as in linux ter is no need of anti virus to be installed it will be installed . d)ms dos,windows xp,sp2,sp3,windows 7,linux,vista ............etc 2 questn a)kernel is the central part of os that controls hard ware. b)because they both control hard ware and software c)linux 3 questn a)to reduce the time period b)time sharing is for as in a it company 1 work will be shared among all the employes to finish in time and share the time. 4 questn a)it must be installed by the process b)application program will run on a functional operating os will not run on a functional operatiung 5questn a) other application will be able to reuse the functionality exposed by our layers 2)adding more functionality to your a[pplication made easier 3)layers make your application more testable b)
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