Learn more about computers and how they work


An intermediate course to give you a more in depth understanding of how computers work



Why should I choose this course?

This course covers more in-depth into hardware diagnostics and fault analysis. The course has sections on software trouble-shooting. The course continues on from and expands topics covered in Computer Servicing I.

Is this course right for me?

If you are looking into expanding your skills more into troubleshooting and hardware diagnostics this course is suitable for you. Looking to get into the computer repair industry this course is good for helping you get started.

Expand your Computer service skills


12 lessons filled with easy to understand instructions

Screenshots of working examples

100 hours total study with up to 12 months to complete

No classes, submission dates or schedules!


Open Learning Course -Train to work as a Computer Technician

Develop your ability to undertake routine maintenance and to analyse faults in personal computers.

Computer professionals with the right skills and knowledge are in high demand,  you need to be smart about what you choose to study in I.T. and be prepared to keep up to date after you finish studying as computer technology is always changing.

Hardware and software is continually being improved. This is an industry where change is inevitable. Your initial studies should be focused on developing a "foundation" that will allow you to understand the industry. This course will do that, but even more than that, we encourage you to start networking with other professionals, so that you continue to grow as an IT professional after you graduate.

If you already have some knowledge of computer servicing you may commence with this course, but if you do not, it would be wise to undertake Computer Servicing I as a pre-requisite.

The course takes the average student around 100 hours to complete. It is self paced, so you can start at any time and take as long as you need to do your studies.



There are ten (10) lessons in total, as outlined below:  

1. Introduction to hardware components

  • Introduction

  • Random Access Memory (RAM)

  • Types of RAM

  • Dynamic RAM

  • Tips for buying TAM

  • How to add memory to a computer

  • Problems when installing memory

  • Central Processing Unit (CPU)

  • Considerations when buying a new CPU

  • Graphic card

  • How to install a graphics card

  • Installing a CD or DVD burner

  • Jumper switch settings

  • Hard disk upgrade

  • Installing a back up drive

2. Basic Diagnostic Equipment

  • Introduction

  • Software diagnosis

  • Temperature monitor

  • Registry cleaner, virus scanner and spyware detector

  • USB port tester

  • Power supply tester

  • CPU meter

  • Hard disk tester

3. Electric Circuits and Components

  • Understanding electricity

  • Circuits

  • Measuring electricity

  • Ohm's law

  • Power

4. Problem Solving and Fault Analysis

  • Introduction

  • Problem solving

  • Request response, result strategy

  • The circle back model

  • Pitfalls in problem solving

  • How to troubleshoot and isolate computer problems

  • Hardware failures

  • Software failures

  • Recreating a problem; reproducing the error

5. Diagnostic Testing [A] (Self Tests and Diagnostic Cards)

  • Power up

  • Boot drive

  • Errant keyboard

  • Mouse problems

  • Slow computer performance

  • Computer freezes and displays BSOD (Blue Screen Of Death)

  • No display on monitor

  • No sound

  • Computer rebooting or turning itself off

  • How to troubleshoot a computer that does not boot

6.  Diagnostic Testing [B] (System Board and Memory Tests)

  • Components overview

  • Operating system diagnostics

7. Software maintenance and troubleshooting

  • Software and hardware

  • Operating systems

  • Command prompts

  • SOS, DIR command

  • Formatting

  • File types

  • Back up (all types)

  • Copy

  • Print

  • Erasing files

  • Autoexec.bat and Config.sys

  • History of windows

  • Viruses

  • Data corruption

8. Disk drives and CD-ROM

  • Servicing CD Rom drive

  • RAM servicing

9. Video and Audio Systems

  • Video cards

  • Troubleshooting a graphics card

  • Sound cards and troubleshooting

10. Developing a Maintenance Program

  • Work scheduling

  • Project component estimate form

  • Performing routine computer maintenance



  • Develop procedures for routine hardware maintenance of a computer system
  • Develop procedures for routine software maintenance of a computer system
  • Evaluate the appropriateness of different computer systems for different applications.
  • Determine different sources of faulty hardware operation in a PC computer system
  • Determine different sources of faulty software operation in a PC computer system
  • Some of what you will do in this course:
  • Explain how to dismantle a Personal Computer
  • Explain how to reassemble a dismantled personal computer
  • Analyse potential hardware faults that may occur in different computer systems.
  • Determine likely causes of potential hardware faults, including faulty equipment, damage to equipment
  • Analyse potential software faults that may occur in different computer systems.
  • Determine likely causes of potential software faults, including faulty equipment, power surges
  • Describe causes of data corruption
  • Describe ways of addressing software problems including data corruption.
  • Develop a procedure for routine maintenance of a specific computer system.
  • Demonstrate a basic understanding of three different operating systems
  • Outline the role of ROM BIOS.
  • Explain a range of common computer hardware faults which are easily repaired by a technician.
  • Test cables for faulty operation
  • Explain faults which can occur with a VDU
  • Explain how to use several different hardware diagnostic tools
  • Determine procedures to minimise risk of computer problems including equipment breakdowns and data loss.
  • Explain a range of common computer software faults which are easily repaired by a technician.
  • Test different software for faulty operation
  • Explain how to use several different software diagnostic tools


Example Lesson …. 

Do You Know How to Do things like Dismantling and Rebuilding a Computer?


Dismantling and reassembling a laptop computer

If you want to disassemble your laptop computer, the first thing you need to do is make sure you do enough troubleshooting to determine that the problem you are facing is definitely hardware related, and that the laptop is no longer under warranty because disassembling a laptop would generally void its warranty.

Before performing a laptop disassembly, it is recommended that you perform a search on the internet for service manuals available for the particular laptop model that you have, because they contain information specific to that model, and you just need to follow the instructions listed in the manuals. Some of the service manuals are available for download for free whereas others would cost about $10. If you are unable to locate the service manual for your laptop, you can download a couple of ones for different brands and use them as a guide because most of the disassembly steps are similar for different laptop brands and models.

You need to prepare a clean working area with the following tools:
• Wrist strap and conductive mat to prevent electrostatic discharge;
• Tool kit including connector removal tool, loopback plugs and case utility tools;
• Small Phillips screwdriver;
• Flat head screwdriver;
• Tweezers.

Note that laptop computers generally contain screws of different sizes; therefore it is a good idea to group screws with their corresponding components to avoid mistakes during reassembly of the components. 


The basic steps of computer disassembly are listed below:

Step 1:
Make sure you turn off the laptop and unplug the power cord from electricity.

Step 2:
Remove the battery from the laptop.

Step 3:
Remove one of the screws from the hard drive bay cover, and then remove the cover. You should be able to remove the hard drive out of the bay at this stage.

Step 4:
Remove the cover of the memory module, as well as the cover for the Wi-Fi card and that of the modem, then remove the memory module, Wi-Fi card and the modem.

Step 5:
Remove all the screws from the bottom side of the laptop computer.

Step 6:
Remove the securing strip covering the keyboard, and then take the keyboard out by removing all the screws securing the keyboard to the laptop.

Step 7:
Unplug the cable of the keyboard from the motherboard.


This course focuses on application programming in VB.NET (Visual Basic) Programming Language,


Study online at your own pace

Using our modern online portal for study is a simple and effective way of learning.

Once enrolled, you will receive your online account to our system that will give you all the lessons assignments and self-assessment tests so you can start studying straight away. 



Take your passion one step further!

Now you have a basic understanding of computers, dive into the second module, computer servicing 2.

This will give you even more knowledge and facts that will take your skills and ability to service computers even further.

This is an investment into your future as it may lead to any number of pathways in IT.



Avoid hesitation! Get started today

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