Andy Hertzfeld

Andy Hertzfeld sits at the headwaters of the screens we now touch without thinking. He bought an Apple II in 1978, walked into Apple, and became one of the engineers who wrote the original Macintosh system software. We treat the graphical interface as natural, but someone had to invent it line by line, and he was in that room. I am especially grateful he later documented those early days at folklore.org, an act of generosity rare among engineers. Jobs gets the legend, but I refuse to forget the hands that actually built the thing, and Hertzfeld's were among the most important.

Name (English)

Andy Hertzfeld

Name (Japanese)

アンディ・ハーツフェルド

Reading

あんでぃ・はーつふぇるど

Born

April 6, 1953 (age 73)

Zodiac / Chinese zodiac

Aries / Snake

Origin

Philadelphia, Pennsylvania, United States

Occupation

computer engineer / software developer

High school

Harriton High School

University

Brown University

Motto

Private

• Official sitehttps://www.folklore.org/
• Xhttps://x.com/andyhertzfeld
• Wikipedia (Japanese)https://ja.wikipedia.org/wiki/%E3%82%A2%E3%83%B3%E3%83%87%E3%82%A3%E3%83%BB%E3%83%8F%E3%83%BC%E3%83%84%E3%83%95%E3%82%A7%E3%83%AB%E3%83%89

Tags

• Pennsylvania
• computer engineer
• software developer

Last updated

2026-06-02

Facts are limited to publicly available information up to 2024; non-public or unconfirmed items are omitted. English text is machine-assisted (facts translated by Sonnet, "My Take" written by Opus 4.8). The Japanese page is the source of record.