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Assignment
QUESTION 1
Computer operating systems is designed mostly to facilitate ease of use .with the aid of below Diagram show your maximum in-depth understanding of how Computer operating systems works.
QUESTION 2
There are some advantages and disadvantages of the storage systems below diagram elaborate further mentioning DRAM non-volatile storage such as NVRAM,
QUESTION 3
1. RGI has asked for a patch to its Linux Server operating systems showing the fork and exec process on a UNIX system. Note that the fork system call returns the PID of each process's child to each respective process - It returns a zero to the child process and a non-zero child PID to the parent process, so the return value indicates which process is the parent and which process is the child. Write the code of the request for RGI.
2. Explain why implementing synchronization primitives by disabling interrupts is not appropriate in a single-processor system if the synchronization primitives are to be used in user-level programs.
3. The implementation of mutex locks provided in this unit suffers from busy waiting. Describe what changes would be necessary so that a process waiting to acquire a mutex lock would be blocked and placed into a waiting queue until the lock became available.
4. Some CPUs provide for more than two modes of operation. What are two possible uses of these multiple modes?
The Shortest Job Next (SJN) algorithm queues processes in a way that the ones that use the shortest CPU cycle will be selected for running rst.
Develop a user mode command interpreter which support list-short.
Analysis and implementation of algorithms for memory allocation in operating system, Explain First- t and best- t methods are used in memory allocation in operating systems.
Forking the child process
Write a multi-threaded program to solve producer and consumer problem
n a competitive market place (pure competition) is it possible to continually sell your product at a price above the average cost of production.
Simulate the long-term scheduler, the short-term scheduler and the I/O scheduler of the computer using the First-Come-First-Serve algorithm.
Research paper discussing the issues with Trusted Platform Module (TPM)
Explain a complication that concurrent processing adds to an operating system.
Use the semaphore methods to control the concurrency of the solution
Virtual machines supported by a host operating system
Discuss an application that would benefit from the use of barrier synchronization
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