The Full form of HDMI is High Definition Multimedia Interface. HDMI is a cable and connector capable of transmitting high-bandwidth and high-quality streams of audio and video between devices. The HDMI technology is used with devices such as a Projector, DVD player, HDTV, or Blu-ray player. It is an all digital audio-video interface and transmits signals in uncompressed format, e.g. uncompressed or compressed digital data or uncompressed video data from a HDMI-compliant source device to a video projector, computer monitor, digital television etc.
HDMI is a digital replacement for audio standards and analog video which were widely used for many decades in the past. The consumer’s HDMI production began in the late 2003. Since then, several versions of HDMI have been made and developed; all comes with connector and cable. There are two types of HDMI Cable, i.e., Standard Cable and High Speed Cable. The Standard Cable is also called Category 1 HDMI cable. It supports bandwidth of around 2.23 Gbps and works at a pixel speed of 75 Mhz.
It is most suitable for transmitting an uncompressed 1080i signal. The High Speed Cable is called Category 2 HDMI cable. It works at a pixel speed of 340 MHz supporting bandwidth of around 10.2 Gbps. It is suitable for WQXGA and the latest 1440p resolutions.