Sharla Boehm, the programmer whose code underpins the Internet

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TLDR

  • Sharla Boehm, a math teacher moonlighting at RAND, built the simulation that proved packet switching could survive a nuclear attack, foundational to the Internet.

Key Takeaways

  • Boehm wrote the simulation for Paul Baran’s distributed network concept at RAND in the early 1960s, demonstrating that message packets could route around failed nodes.
  • Her work addressed a real failure: a single overheated relay motor in Colorado in 1961 nearly triggered accidental nuclear war by knocking out all SAC communications.
  • Baran’s distributed packet-switching idea faced rejection from AT&T engineers and analog-communications colleagues; Boehm’s simulation was the concrete proof they needed.
  • She co-authored a major RAND paper with Baran but was omitted from standard Internet origin histories, including Katie Hafner’s 1996 book “Where Wizards Stay Up Late.”
  • Boehm taught math at Santa Monica High School and coded summers and sabbaticals at RAND, one of very few women in engineering roles at the time.

Hacker News Comment Review

  • Commenters confirm Boehm’s specific technical contribution: she wrote the first working implementation of packet switching, also called “hot potato routing,” proving the concept viable.
  • No substantive technical debate in comments; the thread functions as a quick-ID reference with a Wikipedia pointer for deeper background.

Notable Comments

  • @CharlesW: identifies her role as inventor and first implementer of packet switching and links directly to her Wikipedia entry.

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