how to use or hdmi with hdmi port ?

No Most DisplayPort to HDMI cables and adapters are one-way adapters from a DisplayPort Source to a HDMI Sink

It uses a 19-pin configuration and in size, is the largest HDMI connector These HDMIs are commonly used with TVs, laptops, PCs, video game

hdmi slot in tv It's called displayport It's an alternative standard to hdmi But it's less common than hdmi

hdmi cable slot What do you need? A laptop with an HDMI port; An HDMI cable; A free HDMI slot on your TV; Inputsource button on your remote control