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Basics of Operating Systems : Operating System Services• HOME     PREVIOUS TOPIC NEXT• PREVIOUS QUESTION PAPERS FOR OS• CP...
RecapIn the last class, you have learnt about• Multi processor System• Operating System Components                        ...
ObjectivesOn completion of this period, you would be able to know• Operating System Services                              ...
Operating System Services• The operating system provides certain services to  programs and to the user of those programs• ...
Operating System Services– Communications– Error detections and handlings– Resources allocations– Accounting– Protection– ...
Operating System Services
Operating System ServicesUser interface• All Operating Systems have a user interface. Types  of user Inter faces are      ...
Operating System ServicesI/O operations• Mechanism for initiating and managing I/O operationFile system management• Creati...
Operating System Services• Safety in the case of power failures via backups• Detecting and desirable states such as printe...
Operating System ServicesProtection• One process must be protected from anotherCommand interpretation• User entered comman...
Summary• The operating system provides certain services to  program and to the user of those programs• These services incl...
Frequently Asked Question1. Write and Explain operating system services                                             12
Quiz1. User entered commands will be interpreted   and appropriate action will be performed by   using Command interpreter...
Quiz• Resources allocations Includes processor  and I/O scheduling, memory management  a) Yes  b) No                      ...
Other subject materials•   Web designing•   Micro processors•   C++ tutorials•   javahome                                 ...
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Operating system services 9

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Operating system services 9

  1. 1. Basics of Operating Systems : Operating System Services• HOME PREVIOUS TOPIC NEXT• PREVIOUS QUESTION PAPERS FOR OS• CPP TUTORIALS 1
  2. 2. RecapIn the last class, you have learnt about• Multi processor System• Operating System Components 2
  3. 3. ObjectivesOn completion of this period, you would be able to know• Operating System Services 3
  4. 4. Operating System Services• The operating system provides certain services to programs and to the user of those programs• These services include – User interface – Program execution – I/O operations – File system management
  5. 5. Operating System Services– Communications– Error detections and handlings– Resources allocations– Accounting– Protection– Command interpretation– Resource management 5
  6. 6. Operating System Services
  7. 7. Operating System ServicesUser interface• All Operating Systems have a user interface. Types of user Inter faces are • Command –line interface, Batch inter face, GUIProgram execution• Starting of programs, managing their execution and communicating their results
  8. 8. Operating System ServicesI/O operations• Mechanism for initiating and managing I/O operationFile system management• Creating, maintaining and manipulating filesCommunications• Between processes of the same user and different usersError detections and handlings• Protection related issues 8
  9. 9. Operating System Services• Safety in the case of power failures via backups• Detecting and desirable states such as printer out of papersResources allocations• Includes processor and I/O scheduling, memory managementAccounting• To track user usage of resources for billing and statistical reasons 9
  10. 10. Operating System ServicesProtection• One process must be protected from anotherCommand interpretation• User entered commands will be interpreted and appropriate action will be performedResource management• The various resources of the system are managed in an optimal way 10
  11. 11. Summary• The operating system provides certain services to program and to the user of those programs• These services include – Program execution and handling – I/O operations – File system management – Communications – Exceptions detections and handlings 11
  12. 12. Frequently Asked Question1. Write and Explain operating system services 12
  13. 13. Quiz1. User entered commands will be interpreted and appropriate action will be performed by using Command interpretera) Yesb) No 13
  14. 14. Quiz• Resources allocations Includes processor and I/O scheduling, memory management a) Yes b) No 14
  15. 15. Other subject materials• Web designing• Micro processors• C++ tutorials• javahome 15

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