Video Converter is a system performing conversion between different types of video signals (e.g., composite, component, S-Video, HDMI). A modern av receiver A/V are presently the centre is not only sound but also images too.

Adapter tech. in the theory of automatic control of the process of changing the parameters and structures of the system and manage the impact of external, directed on the basis of current information, to achieve or maintain a certain, typically, the optimal system state at initial uncertainty and changing conditions.