Otis Frank Boykin (Chicago, Illinois) was an African-American inventor and engineer. Boykin, in his lifetime, ultimately invented more than 25 electronic devices. One of his early inventions was an improved electrical resistor for computers, radios, televisions and an assortment of other electronic devices.
Other notable inventions include a variable resistor used in guided missiles and small component thick-film resistors for computers.Boykin's most famous invention was likely a control unit for the artificial heart pacemaker. The device essentially uses electrical impulses to maintain a regular heartbeat. Boykin himself died of a heart failure in Chicago in 1982