Outputting your computer to your HDTV via HDMI works well. Unfortunately, your computer’s placement depends upon the length of the cable. With Google Chromecast, however, you can literally mirror any browser tab or even your desktop, from anywhere, in just a few clicks.
The point when video card manufacturers started including HDMI outputs was a great moment. Similarly, when TV makers began adding VGA inputs, we had yet another great way to add a huge second (or third) display to our setups. The implications, beyond the logical I-can-project-my-computer-screen-now train of thought were pretty apparent. If you wanted to use your TV now to play games from your computer, or watch movies on a big screen, you could now do so easily and cheaply.
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