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Computer Technician Course
More than 2 million students worldwide

Computer Technician Course

5

Get the hands-on technical skills employers actually look for in a computer technician. This course covers everything from hardware diagnostics and OS installation to networking, cybersecurity, and professional IT support workflows. Whether you are starting fresh or formalising what you already know, you will finish ready to work.

Dedika for businesses

What you will learn:

You will learn how to build and diagnose PC hardware, including processors, memory, storage, and power supplies. The course covers Windows and Linux installation, driver management, and system updates. You will configure wired and wireless networks, assign IP addresses, and troubleshoot connectivity issues. Laptop disassembly, component replacement, and mobile device servicing are included. You will also tackle malware removal, software errors, and data backup procedures. On top of that, you will practise professional skills like ticketing, technical documentation, and remote support. By the end, you will have the knowledge to handle real technician work confidently.

How you study in practice Computer Technician Course

How you practise Computer Technician Course

For companies looking to train their teams

With Dedika for businesses, the course includes exercises and examples tailored to your company and its specific needs.

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Course content

8 Chapters • 42 LessonsDuration between 4 and 360 hours (you decide)

Chapter 1See details

Foundations of Computer Hardware

  • Lesson 1 • Power Supplies and Connectors

    Explains PSU wattage ratings, efficiency certifications, and connector types. Learners calculate power budgets and select appropriate PSUs.

  • Lesson 2 • Motherboards and Form Factors

    Examines motherboard layouts, chipsets, and ATX/mATX/ITX standards. Learners match form factors to appropriate cases and power supplies.

  • Lesson 3 • Introduction to PC Architecture

    Covers the Von Neumann model and how CPU, memory, and I/O interact. Establishes the conceptual framework used throughout the entire course.

  • Lesson 4 • Memory Technologies

    Covers DDR generations, RAM slots, dual-channel configuration, and capacity limits. Learners configure memory correctly for a given motherboard.

  • Lesson 5 • Processors and Cooling Systems

    Explains CPU socket types, core counts, clock speeds, and thermal design. Learners select appropriate cooling solutions for given workloads.

  • Lesson 6 • Storage Devices and Interfaces

    Surveys HDDs, SSDs, NVMe, and optical drives along with SATA and PCIe interfaces. Learners choose storage solutions based on speed and cost requirements.

Chapter 2See details

Peripheral Devices and Connectivity

  • Lesson 1 • USB, Thunderbolt, and Legacy Ports

    Details USB 2.0 through USB4, Thunderbolt 3/4, and legacy serial/parallel ports. Learners identify ports by appearance and spec sheet.

  • Lesson 2 • Input Devices and Standards

    Covers keyboards, mice, scanners, and webcams with USB and wireless protocols. Learners connect and verify each device type in a lab environment.

  • Lesson 3 • Audio and Multimedia Connectivity

    Explains analog audio jacks, S/PDIF, HDMI audio, and USB audio devices. Learners configure audio output and input for workstation and multimedia setups.

  • Lesson 4 • Display Technologies and Ports

    Examines LCD, LED, OLED panels and HDMI, DisplayPort, VGA, and DVI connectors. Learners match display specs to GPU output capabilities.

  • Lesson 5 • Printers and Imaging Devices

    Covers laser, inkjet, thermal, and 3D printer operation and maintenance. Learners install drivers and perform basic printer maintenance tasks.

Chapter 3See details

Operating System Installation and Configuration

  • Lesson 1 • Linux Desktop Installation

    Covers Ubuntu and Fedora installation, desktop environment selection, and basic shell access. Learners gain cross-platform competency essential for mixed-OS environments.

  • Lesson 2 • Driver Installation and Management

    Explains chipset, GPU, NIC, and audio driver installation and update procedures. Correct driver management prevents hardware conflicts covered in the troubleshooting chapter.

  • Lesson 3 • OS Updates and Patch Management

    Covers Windows Update, Linux package managers, and update scheduling strategies. Learners apply patches without disrupting user productivity.

  • Lesson 4 • Pre-Installation Planning

    Covers hardware compatibility checks, partition planning, and bootable media creation. Proper planning prevents installation failures addressed later in the chapter.

  • Lesson 5 • Windows Installation and Setup

    Guides learners through a clean Windows installation, initial configuration, and account creation. Builds the baseline system used in subsequent OS management sections.

Chapter 4See details

Networking Fundamentals for Technicians

  • Lesson 1 • Basic Network Security Practices

    Introduces WPA3, MAC filtering, firewall rules, and guest network segmentation. Learners apply security settings that protect workstations from common network threats.

  • Lesson 2 • Wireless Networking Standards

    Explains 802.11 a/b/g/n/ac/ax standards, channels, and frequency bands. Learners configure a wireless access point for optimal coverage and security.

  • Lesson 3 • Network Hardware and Cabling

    Covers routers, switches, access points, and Cat5e/Cat6/fibre cabling standards. Learners terminate and test Ethernet cables using a cable tester.

  • Lesson 4 • TCP/IP and Addressing Basics

    Introduces IP addressing, subnetting, and the TCP/IP model layers. Learners assign static IPs and interpret subnet masks correctly.

  • Lesson 5 • Network Configuration in Windows and Linux

    Covers ipconfig, ifconfig, nmcli, and GUI network settings for both platforms. Learners configure adapters, verify connectivity, and read IP lease information.

Chapter 5See details

Hardware Diagnostics and Troubleshooting

  • Lesson 1 • Troubleshooting Methodology

    Teaches the six-step CompTIA troubleshooting model and documentation practices. A structured approach reduces diagnostic time and prevents recurring issues.

  • Lesson 2 • CPU and Memory Diagnostics

    Uses stress-testing and memory diagnostic tools to identify CPU and RAM faults. Learners distinguish between overheating, instability, and outright component failure.

  • Lesson 3 • Power and Thermal Fault Diagnosis

    Uses a multimeter and PSU tester to verify voltage rails and identify thermal shutdown causes. Learners replace faulty PSUs and improve system airflow.

  • Lesson 4 • Storage Diagnostics and Recovery

    Covers S.M.A.R.T. data, disk health tools, and basic data recovery techniques. Learners assess drive health and recover accessible data before replacement.

  • Lesson 5 • GPU and Display Troubleshooting

    Diagnoses artefacts, driver crashes, and no-signal display issues. Learners isolate GPU faults from cable, monitor, and driver-related problems.

  • Lesson 6 • POST Codes and Boot Failures

    Covers BIOS beep codes, POST error messages, and no-boot scenarios. Learners interpret POST output to isolate failed components before OS loading.

Chapter 6See details

Software Troubleshooting and Maintenance

  • Lesson 1 • Backup and System Restore

    Covers Windows restore points, file history, and image-based backup solutions. Learners create and verify backups, then perform a successful restore.

  • Lesson 2 • Malware Detection and Removal

    Covers malware types, scanning tools, and removal procedures in offline and online modes. Learners clean infected systems and verify removal without data loss.

  • Lesson 3 • Windows System Tools and Logs

    Covers Event Viewer, Task Manager, Resource Monitor, and System Information. Learners read logs to identify the root cause of crashes and slowdowns.

  • Lesson 4 • Application Errors and Reinstallation

    Diagnoses DLL errors, missing runtimes, and corrupt application installations. Learners repair or cleanly reinstall software while preserving user data.

  • Lesson 5 • Startup and Service Management

    Explains startup programmes, services, and Safe Mode boot options for isolation. Learners disable conflicting services to restore normal system operation.

Chapter 7See details

Laptop and Mobile Device Servicing

  • Lesson 1 • Mobile Device Connectivity and Sync

    Explains USB tethering, Bluetooth pairing, and cloud sync configuration for smartphones and tablets. Learners resolve common sync failures and data transfer issues.

  • Lesson 2 • Laptop Disassembly and Safety

    Covers ESD precautions, screw management, and service manual navigation for laptops. Safe disassembly prevents damage to fragile ribbon cables and connectors.

  • Lesson 3 • Mobile Device Troubleshooting

    Covers battery drain, overheating, touchscreen failure, and software reset procedures. Learners apply factory reset and data backup before hardware escalation.

  • Lesson 4 • Laptop Display and Hinge Repair

    Covers LCD panel replacement, inverter boards, and hinge tightening procedures. Learners diagnose backlight failure versus panel failure before ordering parts.

  • Lesson 5 • Laptop Component Replacement

    Guides learners through RAM, SSD, battery, and keyboard replacement procedures. Learners complete each swap within manufacturer-recommended time benchmarks.

Chapter 8See details

Professional Practices and IT Support Workflow

  • Lesson 1 • Help Desk Ticketing Systems

    Covers ticket creation, categorisation, priority assignment, and escalation paths. Proper ticketing ensures accountability and measurable service quality.

  • Lesson 2 • Remote Support Tools and Techniques

    Covers remote desktop protocols, screen-sharing tools, and unattended access setup. Learners resolve software issues remotely without requiring an on-site visit.

  • Lesson 3 • Workplace Safety and ESD Prevention

    Explains electrical safety, ESD protection, and safe chemical handling for cleaning agents. Learners demonstrate correct grounding and PPE use in a lab setting.

  • Lesson 4 • Customer Communication Skills

    Teaches active listening, plain-language explanations, and managing difficult interactions. Effective communication reduces repeat contacts and improves satisfaction scores.

  • Lesson 5 • Technical Documentation Standards

    Covers writing service reports, knowledge base articles, and network diagrams. Accurate documentation enables faster resolution of recurring issues by any technician.

Certification

Your valid completion certificate

This course is for you:

  • Career changers: seeking a stable, in-demand trade without a four-year degree.

  • Hobbyists: ready to turn PC-building enthusiasm into a professional credential.

  • Recent graduates: looking for a practical edge before entering the job market.

  • Small business owners: wanting to handle their own IT issues without outside help.

  • Military veterans: translating hands-on technical experience into civilian IT roles.

  • Retail or warehouse workers: pursuing a higher-paying technical career path.

What our students say

Your lessons are perfect. I purchased the one-year package and finally have the opportunity to follow various topics of interest without needing to change platforms... I'm grateful for everything you do, I've already recommended you to other people...
Giulio Carlo
Giulio CarloDigital Marketing Student
I like how the lessons are straight to the point and how I can change chapters and skip content I don't need.
Mariana Ferres
Mariana FerresPhotography Student
I like the content and the way videos are presented and transcribed, which speeds up the process!
Luciana Alvarenga
Luciana AlvarengaNail Design Student
The platform is fast, simple to use. The diversity of content and complementary videos really help with learning.
André Felipe
André FelipePrompt Engineering Student

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