Synchronous distance learning programs involve interfacing with the instructor in real time. What this means is that students may be required to listen to live lectures and participate in group discussions via the Web or through phone-ins at the same time, but from different locations.
From the time when the study material was mailed to students via post, distance learning education has traveled a long way. There is an increased dependence on technology to impart education through this mode. In fact, the two main types of technologies used for imparting distance education programs are synchronous and asynchronous.