
Computer Technician Course
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.
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.
Course content
8 Chapters • 42 LessonsDuration between 4 and 360 hours (you decide)
Chapter 1HideHide detailsSee detailsFoundations of Computer Hardware
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 2HideHide detailsSee detailsPeripheral Devices and Connectivity
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 3HideHide detailsSee detailsOperating System Installation and Configuration
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 4HideHide detailsSee detailsNetworking Fundamentals for Technicians
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 5HideHide detailsSee detailsHardware Diagnostics and Troubleshooting
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 6HideHide detailsSee detailsSoftware Troubleshooting and Maintenance
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 7HideHide detailsSee detailsLaptop and Mobile Device Servicing
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 8HideHide detailsSee detailsProfessional Practices and IT Support Workflow
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.
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...

I like how the lessons are straight to the point and how I can change chapters and skip content I don't need.

I like the content and the way videos are presented and transcribed, which speeds up the process!

The platform is fast, simple to use. The diversity of content and complementary videos really help with learning.

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