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Q. What is Multiprogramming?
Multiprogramming
What is input output operation ?
DESCRIBE OPERATING SYSTEM
There are three kinds of Data Abstraction: Physical level: The minimum level of abstraction defines how data are saved. Logical level: The next bigger level of a
why we say " OS is a resource allocator" and “OS is a control program"?
What are the objectives for a file management system? To meet the data management wants and requirements of the user, which embrace storage of data and the ability to
What is thrashing? It is a method in virtual memory schemes when the processor spends most of its time swapping pages, rather than implementing instructions. This is because o
Explain internal fragmentation The Internal fragmentation signifies to the result of reserving a piece of space without ever intending to use it. This space is wasted that this
What are the multithreading models? There are three models:- a) Many-to-One model b) One-to-One model c) Many-to-Many model
We have stressed the need for an operating system to make efficient use of the computing hardware. When is it appropriate for the operating system to forsake this principle and to
Define Segmentation The memory allocation method subject to “external” fragmentation is Segmentation.
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