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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 programmer in creating programs.
Program execution
It handles scheduling duties like implementation of programs and loading instruction and data into the main memory. Initializing files and I/O device.
Access to I/O devices
OS provides a uniform interface that covers the inner details, thus that the programmer can access any device using simple read and writes.
Controlled access to files
For multiple users it provides protection system to access the file. It controls the right to use of the system and resources. It protects data and resources from unauthorized users.
Error detection and response
OS provides response that clears both external and internal hardware errors.
Priority Scheduling leads to the risk of starvation: a process is ready, but never is given the processor. Some preemptive priority schedulers therefore reserve a fraction of the p
Q. What are the major advantages of the microkernel approach to system design? Answer: Benefits usually include the following (a) Adding a new service doesn't require modify
What is the use of multiprogramming on individual processors ? In the usual multiprocessor, which is dealing with independent or coarse-grained synchronization granularity, it i
There is a process bloacked by a semaphore and no other process in the ready queue, can the blocked process get back to the ready queue without the semsignal() function?
What do you understand by “line balancing”? What happens if balance doesn’t exist?
Transparency : Users must be able to access remote resources as though these resources were local. Transparency should as well promote user mobility. Users must be allowed to lo
Q. Presume that we agree that 1 kilobyte is 1,024 bytes 1 megabyte is 1,0242 bytes and 1 gigabyte is 1,0243 bytes. This progression carries on through terabytes, petabytes, and ex
Memory Protection
What is bounded buffer
Ask using a laballed diagram explaining the architecture of windows operating ststem
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