Educational technology plays an important role in 21st century education by allowing for student-centered, collaborative learning with real-world context. It provides 24/7 access to information, constant interaction, and easily shared digital content. Technology should be integrated comprehensively to develop 21st century skills like communication, collaboration, problem solving and innovation. It also supports innovative teaching, training for teachers, development of curriculum and materials. The 11 key functions of educational technology are to improve teaching and learning, analyze the process, enhance goals, provide training, develop curriculum and materials, identify community needs, and help overall improvement of the educational system.