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Q. What is the use of system calls? Answer: System calls permit user-level processes to request services of the operating system.
Q. Illustrate the Operating System Components? Modern operating systems share the goal of supporting system components. System components are: 1. Process Management 2.
explain dynamic patrician stratagies
What are files and explain the access methods for files? File definition Attributes, operations and types Direct access Sequential access with diagram Other access
Allocators can also be used to avoid problems with unsafe languages. C and C++ are pervasive, with huge amounts of existing code. They are also memory-unsafe languages, in that the
What is the exclusive feature of UNIX Shell is the exclusive feature of UNIX.
Q. We have stressed the require for an operating system to make efficient use of the computing hardware. When is it suitable for the operating system to forsake this principle and
what are the threds in operating system?
Q. Describe the three main architectural layers of Windows XP? Answer: (1) The HAL (Hardware Abstraction Layer) creates operating system portability by hiding hardware differ
Describe swapping technique in UNIX systems. Swapping is used to control memory contention among processes. If there is excessively much memory contention, processes are swappe
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