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What are the main differences between operating systems for mainframe computers and personal computers?
The design goals of operating systems for those machines are quite different. PCs are inexpensive, so wasted resources like CPU cycles are inconsequential. Resources are wasted to improve usability and enhance software user interface functionality. Mainframes are the opposite, so resource use is maximized, at the expensive of ease of use.
Message passing system:- The function of message system is to permit processes to communicate with one another without the requirement to resort (option) to shared data. Commun
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
Question: (a) Distinguish between local and active directory Group Policy in Windows Server 2008? (b) Describe the three areas of account Policies that can be managed thro
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How is memory management done using bit maps? A bit map is here in this we signify the bit value as 0 or 1. 1-hole 0-process In this we are able to represent the proce
why we say OS is a resource allocator and control program
The term IPC (Inter-Process Communication) defines several paths by which different process executing on some operating system interact between each other.
How can the index blocks be implemented in the indexed allocation scheme? The index block can be implemented as follows a. Multilevel scheme b. Linked scheme c. Combin
Mention some attractive properties of semaphore? The Semaphores aren't provided by hardware. However they have numerous attractive properties: Machine indep
What are the necessary conditions for deadlocks? 1. Mutual exclusion : Only one process at a time is able to use the resource. 2. Hold and wait : A process should be holdi
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