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(a) Describe services of operating systems.
(b) Differentiate among the short term, medium term and long term scheduling that are given by multi-tasking operating systems.
(c) Why processes at times need to be swapped when programs are run?
(d) Old computer systems use single bus to connect with devices. One problem of these systems is the propagation delay. How does this lead to the delay?
(e) What is the drawback of using multiplexed bus instead of a dedicated bus?
(f) Show a diagram to depict how the local, system, high-speed and expansion buses connect cards and peripheral devices in a computer system.
Define a state which is not a fundamental process state Answer: Blocked state is not a fundamental process state
Define a linker program A linker program links the program along with other programs required for its execution.
What is a pure demand paging? When starting implementation of a process with no pages in memory, the operating system sets the instruction pointer to the first instruction of t
What are the services provided by the operating systems? Program Development It provides a variety of services and facilities, such as debuggers and editor, to help the
With software algorithms for mutual exclusion, such as Dekker's algorithm, Peterson's algorithm, or Lamport's bakery algorithm, note that optimizing compilers and out-of-order exec
DESCRIBE OPERATING SYSTEM
What is multiprogramming? Multiprogramming: The management of many processes within a single processor system. Operating systems such like UNIX provide multiprogramming for sha
Question 1: a) Briefly explain each of the following terms: (i) Distributed systems. (ii) Real time systems. (iii) Multiprocessor. b) What is the impo
Define CPU scheduling. CPU scheduling is the method of switching the CPU among several processes. CPU scheduling is the basis of multiprogrammed operating systems. By switching
operating systems and its types together with its design issues and their examples.
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