Red, green and blue symbolize the three primary colors of light used in video communications engineering. Red, blue and yellow symbolize the three primary colors of dye used in graphics reproduction and publishing.? The flowing line and circular discs are suggestive of communication recording tools such as tapes, magnetic drums, paper and rollers. They also represent long-term development and research in graphics art communication technology. Together, they embody the Department’s focus on combining abstract thought with concrete applications.