HDMI inputs are ports found on electronic devices like televisions, computers, and gaming consoles that allow for the connection of various multimedia sources. HDMI stands for High-Definition Multimedia Interface, and it transmits both high-quality video and audio signals through a single cable, simplifying the setup of home entertainment systems. These inputs support various resolutions, including 4K and 1080p, making them ideal for modern devices. By using HDMI inputs, users can easily connect devices such as Blu-ray players, streaming devices, and laptops to their screens, enhancing their viewing experience with clear visuals and sound.