What are the other 3 ports beside the HDMI port for?

HDMI Port on laptop not working hdmi slot HDMI stands for High Definition Multimedia Interface and is the most frequently used HD signal for transferring both high definition audio and video over a hdmi cable slot It's called displayport It's an alternative standard to hdmi But it's less common than hdmi

hdmi slot HDMI and VGA are completely incompatible, so you need an active adapter which will decode the HDMI signal and produce equivalent VGA signal You