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Last update: Jul 13/21
Collections
FLOSS Manuals  by various (CC BY-SA).

Openly licensed booklets, course materials, and manuals for free software. The site is also available in Dutch, Farsi, and French.
Courses
PC Hardware  by Carnegie Mellon University (CC BY-NC-SA).

PC Hardware is a study of the basic assembly, maintenance, and repair of microcomputer systems. Divided into eight (8) units, these hardware-oriented topics include subcomponents, such as system board, video, memory, storage, multimedia, networking, and printers. This course provides 25 content modules and simulated exercises aligned with the current version of CompTIA A+ Hardware Exam 220-901.

PC Software by Carnegie Mellon University (CC BY-NC-SA).

PC Software is a study of Windows operating systems, security and mobile devices, and troubleshooting theory and application. Divided into seven (7) units, topics include installation and maintenance of Windows operating systems; implementation of security features on microcomputer systems and mobile devices; installation and configuration of PC operating systems; and configuration and troubleshooting techniques for mobile operating systems Android and Apple iOS. This course provides 26 content modules and simulated exercises aligned with the current version of CompTIA A+ Software Exam 220-902.