Summary: <p>In the early days, the Internet and email were text-driven. But a decade after email began, the sideways smiley-face emoticon showed up, along with other symbols of emotion constructed largely from punctuation marks. Love 'em or hate 'em, they're still around and have been joined by emoji, an extensive keyboard of images available on Apple products, and GIFs, a short-loop animation. Tech Tuesday explores the history, function and future of these images as a means of communication and their place in the tech lexicon.</p>
