Educational technology refers to the use of both physical hardware and software to facilitate learning and improve performance. It encompasses domains like learning theory, computer-based training, online learning, and mobile technologies. The objectives of educational technology include meeting the challenges of mass education, equalizing educational opportunities, and improving lifelong learning. The scope of educational technology is wide, ranging from concrete educational processes to more abstract areas, and includes the use of hardware, software, systems analysis, and more in educational operations and administration.