Learning management systems (LMS) function as online classrooms where instructors can post course materials like readings, videos, and assignments. They allow for both synchronous and asynchronous communication between instructors and students. LMS can be hosted on local servers or remotely through cloud-based providers. Common features of LMS include forums, file sharing, grading, calendars, announcements, and quizzes. While LMS provide repositories for learning materials, they do not teach the course content or support content creation themselves - the instructor designs and delivers the educational experience through the LMS.