Definition and applications of Telemedicine (What is Telemedicine / the prospects of this scientific field). The main phases (stages), according to the technological evolution. Telemedicine in Greece and in a global level . Conclusions. Physiological and anatomic data acquisition systems(Cameras: CRT, CCD, CMOS, Scanners: Image quality issues. Other special mining systems). Minimal technical requirements from computing systems and warehouse systems in telemedicine service. Computing systems. High computing output requirements. Data storage systems ( Magnetic systems, mixed systems, visual systems- laser appliances, other systems). Types of information transmitted and standards, during Telemedicine practice. Static images (DICOM and other patterns). Computer supported cooperative work. Video (Basic protocols of recording and transmission). Main Telemedicine applications. Teleradiology. Telepathology. Telecytology . Telecardiology. Teleoncology. Telesurgery. Telepsychiatry. Teledermatology. Telemedicine in primary health care places. Quality control and quality safeguard in Telemedicine. Internet in Telemedicine. Distant learning, teleteaching and telework . Data safety and privacy. Legal and ethical issues. Financial and administration issues. Social impact and dissemination of “know-how”.