Educational content or materials that are available at no cost or low cost to the reader, student, or teacher and often openly licensed. OERs can be used for teaching, learning, research, and other purposes. OERs include courses, course materials, content modules or learning objects, collections...
Software placed in the public domain where there is no ownership such as copyright, trademark, or patent. #Copyright #Technology
Software for which the original program instructions, and the source code, is made available so that users can access, modify, and redistribute it. The Linux operating system is an example of open source software. Mozilla's Firefox is an example of a popular open source software project. ...