What is HDCP, EDID and CEC?

HDMI (High-Definition Multi Media Interface) is a compact audio/video interface for transmitting uncompressed digital data.

HDCP (High-bandwidth Digital Content Protection) is digital copy protection developed by Intel Corporation. It is used to prevent digital copy of audio and video signals.

EDID (Extended display identification data) is a data structure provided by a computer display to describe it's capabilities to a graphic card.

CEC (Consumer Electronics Control) is a one-wire bi-directional AV Link protocol to perform remote control functions.