Signs have been guiding mankind with information for centuries, with some of the earliest commercial signs being made out of stone and terracotta. Today, signs can range from simple metal panels with information painted on them, to electronic signage that lights up to convey signals (e.g., traffic control signals) or other information. Now, even the humble sign has gone digital with dynamic functionality including multimedia, interactivity, and artificial intelligence (AI). Digital signage now spans a wide range of forms including kiosks, media players, electronic paper displays, and interactive smart screens. Collectively, they fulfill a growing list of use cases including display of...
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