Many definitions have been given by many authors about Educational technology, but this definition is what I like best."Educational Technology is a complex, integrated process involving people, procedures, ideas and organization for analyzing problems and devising, implementing, evaluating and managing solutions to those problems, involved in all aspects of human learning". This definition, we can understand clearly what Educational Technology means.

Instructional technology, technology in education and educational media, are parts of Educational Technology, each parts has its own role to achieve learning.

Technology in education is the application of technology to any process involved in the operating institution of educational enterprise.

We must remember that educational technology is not just a tool or  a device it involves process, procedures and activities, instructional and curricular designs, learning environment and systems.