What is the general purpose of HDMI cables?

HDMI cables are designed to transmit high-quality video and audio signals through a single cable, making them extremely versatile and widely used in various multimedia applications. The primary function of HDMI (High-Definition Multimedia Interface) is to connect devices such as televisions, projectors, cameras, and computers to send both high-definition video and multi-channel audio.

The ability to handle both types of signals simultaneously is crucial for creating a cohesive multimedia experience. It eliminates the need for multiple cables (one for video and one for audio), simplifying connections and reducing clutter. HDMI supports various audio formats, including standard stereo audio, compressed formats like Dolby Digital, and lossless formats such as Dolby TrueHD and DTS-HD Master Audio, showcasing its comprehensive capabilities in audio transmission alongside video.

Other options do not encompass the full capabilities of HDMI cables; for example, HDMI is not limited to audio output only or video input, nor is it designed to function specifically for data transfer in the sense of transferring files or information like a USB cable would. This combination of video and audio output is what distinguishes HDMI as a standard in modern multimedia connectivity.