Show the services which provided by operating system, Operating System

Assignment Help:

Q. Show the services which provided by operating system?

A) Resource Allocation:

  • If there are more than one user or jobs running at the same instance then resources should be allocated to every one of them. Operating system manages various types of resources require special allocation code i.e.CPU cycles, main memory and file storage.
  • There are a number of resources that require only general request and release code. For allocating CPU, CPU scheduling algorithms are used for better utilization of CPU. CPU scheduling routines consider the speed of CPU and number of available registers as well as other required factors.

B) Accounting :

  • Logs of every user should be kept. It is also essential to keep record of which user how much and what types of computer resources. This log is used for accounting purposes.
  • The accounting data can be used for statistics or for the billing. It is also used to improve system efficiency.

C) Protection:

  • Protection involves ensuring that all access to system resources is controlled. Security starts with each user having to authenticate to system typically by means of a password. External I/O devices should be also protected from invalid access attempts.
  • In protection all the access to the resources is controlled. In multiprocess environment it's possible that one process to interface with the other or with operating system so protection is required.

 


Related Discussions:- Show the services which provided by operating system

Semaphores, how do semaphores help us in eliminating deadlock conditions?

how do semaphores help us in eliminating deadlock conditions?

Explain fixed partitioning, Explain fixed partitioning. Partitioning ar...

Explain fixed partitioning. Partitioning are the simpler techniques that don't involve virtual memory. Partitioning has been used in numerous variations in operating systems.

Replacement algorithm for tlb, Consider the following C program where M, N,...

Consider the following C program where M, N, K are predefined constants. Assume int is 4 bytes. Suppose this program is run on a machine with 4KB page size and 32 TLB entries. Init

What do you meant by the term ergonomics, Question 1: "Three entities m...

Question 1: "Three entities must be accountable and responsible for accident prevention." (a) List and explain these three entities. (b) Discuss the role of workers in ma

Default domain controllers policy gpo, Question: (a) Distinguish betwee...

Question: (a) Distinguish between local and active directory Group Policy in Windows Server 2008? (b) Describe the three areas of account Policies that can be managed thro

What is the benefits os co-operating process, What is the benefits OS co-op...

What is the benefits OS co-operating process? Information sharing. Computation speeds up. Modularity. Convenience.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd