In 2002, Network-on-Chip (NoC) technology was just an idea on the drawing board, but today it is “tremendously successful” with virtually all large-scale chips being designed with NoCs, according to the authors of “Networks on Chips: 15 Years Later.” This article was featured in the May issue of IEEE Computer as part of the publication’s 50th anniversary retrospective, where the editors looked back on the articles that had the most significant impact on computing technology.