Charles P. Thacker

Charles Patrick "Chuck" Thacker (February 26, 1943 – June 12, 2017) was an American pioneer computer designer. He worked on the Xerox Alto, which is the first computer that used a mouse-driven Graphical User Interface. He was known for being the co-inventor of the ethernet.
Thacker died on June 12, 2017 from complications from esophageal cancer in Palo Alto, California at the age of 74.