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computer maintenance concept, Slides of Computer science

Computer science

computer maintenance concept how to do repair & service

Typology: Slides

2017/2018
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Installation, Repair, Servicing
Installation, Repair, Servicing
&Computer Maintenance concepts
&Computer Maintenance concepts
1
Facilitator:
Facilitator:
Suleiman Mohammed
Suleiman Mohammed(mcpn,
(mcpn,
mncs)
mncs)
Institute of Computing & ICT, Ahmadu Bello University, Zaria.
Institute of Computing & ICT, Ahmadu Bello University, Zaria.
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Installation, Repair, ServicingInstallation, Repair, Servicing

&Computer Maintenance concepts &Computer Maintenance concepts

Facilitator: Facilitator:

Suleiman Mohammed Suleiman Mohammed(mcpn,(mcpn,

mncs) mncs)

Institute of Computing & ICT, Ahmadu Bello University, Zaria.Institute of Computing & ICT, Ahmadu Bello University, Zaria.

The Concepts

  • (^) The effective & efficient working of a system depends on the following four features:
  • (^) Maintenance
  • (^) Servicing
  • (^) Trouble shooting
  • (^) Repair

Servicing

  • (^) Servicing is mainly associated with hardware equipment.
  • (^) Servicing includes checkups, repairs and updation of all physical components.
  • (^) Service provider should have proper knowledge about various components and their installation procedures.

Servicing steps

  • (^) Uninstall all physical components starting from power connections to internal motherboard connections.
  • (^) Clean dust from the components.
  • (^) Perform a visual check or electronic check as required.
  • (^) Reinstall all components carefully and properly.

Troubleshooting

  • (^) The detection and removal of faults in the computer system is known as troubleshooting.
  • (^) If a problem is detected in a system, it is to be sorted out immediately.
  • (^) Troubleshooting is of two types :
    • (^) Hardware troubleshooting.
    • (^) Software troubleshooting.

…troubleshooting

Troubleshooting depends on the following four factors:

  • (^) Problem solving approach.
  • (^) Techniques adopted in troubleshooting.
  • (^) Tools and test equipments used.
  • (^) Diagnostic aids in the PC.

Repair Maintenance policy

  • (^) Repair of components may result into adding up of cost and delay in operations.
  • (^) Some failures occur because of repairs, it is called repair generated failures.
  • (^) Repairs are termed as corrective maintenance.
  • (^) Corrective maintenance is done when a fault occurs.

Repair Maintenance policy

  • (^) Preventive maintenance should be favoured over corrective maintenance.
  • (^) Preventive maintenance may add to the cost but saves operation time.
  • (^) Preventive maintenance is often neglected and the emphasis is on repair maintenance policy.
  • (^) It enforces maintenance through servicing.

Maintenance

  • (^) Maintenance is a process which starts with installation of the system and runs through out the life of it.
  • (^) Maintenance includes both…
    • (^) Hardware maintenance.
    • (^) Software maintenance.

Software Maintenance

  • (^) Software maintenance includes updation, enhancements, changes, repair and replacements.
  • (^) Altered environment or changed conditions may result in software maintenance.
  • (^) It is of the following two types :
    • (^) Adaptive maintenance
    • (^) Prefective maintenance

Preventive Maintenance

  • (^) Preventive maintenance means maintenance through preventions.
  • (^) Careful handling of the computer enhances the life of the system and is called preventive maintenance.
  • (^) Preventive maintenance can be done by taking some general precautions and some special precautions.

General Precautions

  • (^) Ensure all peripherals are switched off before the main power is switched off.
  • (^) Remove all CD’s from the drives before switching off the system.
  • (^) Do not switch off the system when activity LED in hard disk drive glows.
  • (^) Store CDs in clean and cool place where electromagnetic interference is absent.

Special Precautions

  • (^) Do not apply force on key switches.
  • (^) Do not rest hands on the keyboard.
  • (^) Do not play with the keyboard after switching off the power.
  • (^) Cable at keyboard end should not be subjected to high stress.
  • (^) Do not use rough materials to clean the components of the system.

…Special Precautions

  • (^) Use quality ribbon or ink to avoid damage to print head.
  • (^) The internal parts of printer like stepper motor, print head, etc. should be cleaned properly periodically.
  • (^) Switch off power before plugging and removing a cable, or inserting and removing a PCB.