Examples of sources that host free computer tutorials include websites such as GCFLearnFree.org, TechTutorials.net and BleepingComputer.com. These sources provide tutorials that cover computer basics, Internet safety, internal computer hardware, and peripherals such as mice and keyboards, among other topics.
The Computer Basics tutorial on GCFLearnFree.org features 15 articles that explain the concepts of operating systems, applications and cloud computing as part of the introduction. The tutorial elaborates on basic parts and buttons on the computer, explains the differences between desktop and mobile computer platforms, provides tips regarding the setup process and the operating system, and delineates means of maintenance and troubleshooting. Other tutorials on GCFLearnFree.org mainly focus on Internet and email usage.
As of 2015, TechTutorials.net features more than 6,400 tutorials divided into categories such as applications, computer hardware, networking and programming. Some categories include subcategory folders that contain links to tutorials and glossaries, some hosted on other websites. The website rates each tutorial individually, and users can sort them according to their ratings and titles.
The Tutorials section on BleepingComputer.com lets users search for content based on the keywords or by accessing one of the 20 categories. These categories cover Windows, OS X and Linux operating systems, Web browsers, security issues and editing software. For each category, the website provides a short summary for the tutorials, keywords related to the content of each tutorial, and the authors' names.