Plus, composite cables suffer from the same disadvantage as component cables: They cannot do what HDMI does with one cord. By contemporary standards, this would look grainy to most on a TV screen compared to the high quality HDMI transmits. The red, yellow and white cables transfer video and audio but in analogue and only up a 480i resolution. Most likely everyone above a certain age remembers the old-fashion trio of cables. In sum, HDMI cables generally provide the best combination of video and sound all in one cord. This means, if you use a component cable, you need separate audio cables. However, the latter does not carry audio signals. Much like HDMI, component cables are capable of carrying a 1080p signal, so both could potentially provide the same level of picture quality. They send the high definition signal from the system to the screen so you can enjoy the best visual experience possible. In fact, HDMI cables allow you to connect your television to all kinds of essential devices, including Blu-ray players, gaming systems, cable boxes, and satellite dishes, to name just a few. High definition television has become the visual standard for television over the past decade, and high quality HDMI (high definition multimedia interface) cables help make it possible.