MELCOM80 GEOC 80GR

Announced in 1989, this series of office computers from Mitsubishi Electric was equipped with a "GREO" (pronounced "gray-oh") ultra high-speed relational database processor. The GREO processor was commercialized based on the outcome of the research on high-speed sorting technology conducted by Dr. Masaru Kitsuregawa (who at that time was an Assistant Professor of the Institute of Industrial Science, University of Tokyo). This processor was the first to be successfully put into practice in office computers.