Talks to Watch

Seymour Cray's Only Surviving Talk: "Cray-1 Introduction" (1976, LANL)

59K views · Sep 17, 2010 · 1:02:09 · 1 HN recommender · 3 mentions · discussed 2016–2026

Seymour Cray's only surviving recorded talk, introducing the Cray-1 supercomputer in 1976. He describes the machine's design, including its vector architecture and cooling through the frame.

Why Hacker News points people here: Cited as a rare first-hand account from Cray, loved for details like the aluminum machining invented to carry Freon through the frame.

“My favorite part is his description of the aluminum machining they had to invent in order to move the freon through the frame”HN comment, 2026

What Hacker News said 3

Strongly recommendsthemafiaJan 2026

“My favorite part is his description of the aluminum machining they had to invent in order to move the freon through the frame”

Cray describes the Cray-1 design and its aluminum Freon cooling.

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Cray himself. Here's a talk about designing it. My favorite part is his description of the aluminum machining they had to invent in order to move the freon through the frame to keep the machine from melting. It's a great talk. this video

in “The Cray-1 Computer System (1977) [pdf]” · view on HN
Cites itdavidf18May 2016

“Here is a talk of his”

A talk by Seymour Cray.

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This is the Watson "janitor" letter: link Here is a talk of his: this video Bill Norris mentioned was the CEO of CDC.

in “Seymour Cray Obituary by John Markoff (1996)” · view on HN
Cites itakira2501Dec 2023

“to run Freon directly through the frame of the Cray-1”

Cray's Freon cooling through the machine frame.

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It reminds me of Seymour Cray's solution. Well, series of solutions, to run Freon directly through the frame of the Cray-1. this video

in “How thermal management is changing in the age of the kilowatt chip” · view on HN