Hap Horn

Harrison Stratton "Hap" Horn (March 11, 1927 – June 30, 2004) was a member of the original Macintosh development team at Apple Computer.

Early life and education
Horn was born in March 1927 in. He entered the (MIT) in 1944 and spent a year in the. He received a BSEE from MIT in 1949. Horn was elected a senior member of the (IEEE) in 1956 and received a MS in engineering services from Stanford University in 1961 as a honors cooperative program scholar. While at Stanford, he also invented the. Horn married Cecelia M. "Cele" Schwarz, a native of, in Monterey, California. They had a daughter, Ginger, and stepsons John and Chris.

Career
Horn began his work during the era of s and co-founded Howall, where he consulted for corporations such as and Data Technology. Prior to joining Apple, Horn was an employee at and Hewlett-Packard.

Apple Computer
Horn joined the Macintosh team in 1982, where he was a linear circuit designer and worked on fixing the problematic "Twiggy" drive. According to a first-hand account by journalist Michael Moritz, division manager Steve Jobs and engineering manager Bob Belleville colluded to take up Horn on one of his threats to quit. Horn left Apple in 1983 and continued work as a contractor until retiring to Los Altos, California. Horn's signature is among those molded into the case of the original Macintosh 128K.

Death
Hap and Cele remained married for 34 years until he passed away in June 2004 in Palo Alto, California.