Free online courses in Hardware, Operating Systems and IT Support

Free online IT courses for practical technical support skills

Build job-relevant knowledge with free online courses covering computer hardware, operating systems, Linux administration, networking, systems programming and IT support. This learning collection is suitable for beginners, students, technicians and professionals who want to understand how computing environments operate. Every course is free, includes free certification and features exercises that reinforce essential concepts through active learning and knowledge assessment.

Develop hardware and operating system expertise

Study the architecture of desktop and laptop computers, including processors, memory, storage devices, motherboards, peripherals and system interfaces. Operating system lessons introduce processes, threads, file systems, memory management, security, command interpreters and resource allocation. These subjects provide a technical foundation for troubleshooting, preventive maintenance, software installation, system configuration and user support.

• Begin with the Hardware course to learn about computer components, assembly concepts and diagnostic procedures.
• Explore the Computer operating systems course for structured instruction in OS functions and computer resource management.
• Practice terminal navigation, file manipulation and administrative utilities in the Linux command line tutorial.
• Combine device maintenance with connectivity principles through the Hardware and Network full course.

Learn Linux, networking and technical support

The catalog also offers instruction in Ubuntu, Kali Linux, basic Linux commands, home networking and progression from beginner-level Linux use to system administration. Learners can develop competencies in shell operations, users and permissions, package management, services, IP addressing, network devices, connectivity testing and fault isolation. Exercises help transform theoretical study into practical troubleshooting skills for help desk, desktop support and junior system administration activities.

Continue your IT education

Expand your learning with more free Linux courses, including distributions, commands and administration topics. You can also study protocols, addressing and infrastructure in the collection of free Networking Basics courses. These related resources support a broader educational pathway in computer maintenance, network support, cybersecurity fundamentals and infrastructure operations.

Access the free courses in the Cursa app

To access the courses, exercises and free certification, install the Cursa app on your mobile device. Android users can choose Download for Android through Google Play. iPhone users can select Download for iOS / iPhone through the App Store and begin studying at their own pace.