Rod Holt
Apple's fifth employee who created the Apple II power supply.
Rod Holt is an American electrical engineer and political activist who became the fifth employee of Apple. He is best known for developing the switching power supply for the Apple II, which allowed the computer to be lightweight compared to competitors using transformers.
Quick Facts
- Birth Name
- Frederick Rodney Holt
- Birth Place
- Boston, Massachusetts, U.S.
- Education
- Ohio State University
- Occupation
- Electrical engineer
- Known For
- Developed the power supply for the Apple II.
Facts from the source article.
Lore & Background
Holt was born in 1934 to a psychiatry resident father and an artist and teacher mother. He became interested in electronics by age 14 and taught ham radio courses for Wellesley High School by age 16. After graduating high school in 1952, he married his high school girlfriend Joanne and joined Ohio State University as a math major. While at OSU, he opened a motorcycle shop that failed within a year, then worked in electronics to support his family. He continued racing bikes intermittently for twenty years. By 1958, as a grad student, he became a political activist, later involved in OSU's Free Speech Movement and serving as editor of the Free Speech Press, reconfiguring himself as a socialist.
After graduate school, Holt worked as an electrical engineer at Hickok Electrical Instrument Company and later joined Atari as an Analog Engineer. During early Apple II development, Steve Jobs asked Atari's Al Alcorn for help with the power supply; Alcorn redirected Jobs to Holt. Holt was initially skeptical of Jobs and Apple, telling Jobs his rate was $200 per day. Jobs replied 'we can afford you,' and Holt joined Steve Wozniak's team, working after hours at Atari on Apple's television interface and power supply. He later joined Apple full-time as Employee #5, serving as Chief Engineer and Vice President of Engineering during most of the Apple II era. He contributed to the floppy disk, switching power supply, and radio interference problems, receiving four patents and the title of Chief Scientist. After six years of long hours, he was pushed out by new management, the fourth of five original Apple team members to leave.
In the 2013 film Jobs, Holt was portrayed by Ron Eldard as a long-haired motorcyclist in leathers. Bill Fernandez and Daniel Kottke found this characterization amusing and inaccurate, noting Holt was into dirt bikes but they never saw him ride one. Holt himself thought the portrayal was hilarious.
Reader's Guide
Holt's significance lies in his engineering contributions during Apple's formative years. As the fifth employee, he developed the switching power supply for the Apple II, which Apple's first CEO Michael Scott credited with enabling a lightweight computer compared to others using transformers. This innovation was part of a broader trend, as switching power supplies had appeared in earlier systems like the PDP-11/20, Datapoint 2200, IBM 5100, and DECSYSTEM-20. Holt also worked on the floppy disk and radio interference problems, earning four patents. His tenure as Chief Engineer and Vice President of Engineering spanned most of the Apple II era, after which he was pushed out by new management. His legacy is tied to the early Apple team, and his portrayal in the 2013 film Jobs sparked discussion among former colleagues about the accuracy of dramatized depictions of Apple's history. Holt found the film's characterization hilarious, while others saw it as fan fiction.
Did You Know?
- He opened a motorcycle shop while at Ohio State University, which failed within a year.
- Holt was Apple's fifth employee and received four patents for his work.
- He was portrayed by Ron Eldard in the 2013 film Jobs, riding a motorcycle in leathers.
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