Educational technology serves two roles: as a delivery mechanism for instruction and as a learning tool used by students. In the 21st century, technology allows for 24/7 access to information, constant social interaction, and easily created and shared digital content. It also enables more student-centered and collaborative learning by allowing students to be creative, innovative producers of multimedia projects and solutions. The goals of educational technology are to improve teaching, make the learning process more efficient and effective, and address issues of learning, teaching, and social organization through educational research.