An HDMI cable is high definition multimedia interface, this cable can carry signal for audio and video inside one cable which makes for simpler connections. To use analog connectors would take nine individual cables to equate what the HDMI can handle. HDMI is capable of 1080p video, that's sixty frames a second, which is currently the highest video standard; and on audio it handles eight channel of 24 bit 192Khz which is enough for Dolby TrueHD and DTS-HD, the two highest standards in audio.
