Jul 6
Die photograph of a MOS 6502, an early 1970s microprocessor integrating 3500 transistors on a single chip.
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Die photograph of a MOS 6502, an early 1970s microprocessor integrating 3500 transistors on a single chip.
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How am I only just now realizing that Caine is E.N.I.A.C. spelled backwards?!
G. Floyd Steele's Smithsonian interview (PDF) is fascinating, especially as it relates to CADAC. To give a quick overview:
Steele was contracted by John Marquetti (sic[?], his name is spelled Marchetti in other sources so I'll use that spelling for the rest of this post) of Cambridge Air Force Research Lab, on the basis that he give up on the Snark missile project and work on the DEW Line instead.
Marchetti wanted a computer to control DEW Line radar in a decentralized approach (one computer per radar, not networked together).
Marchetti wanted a simple & reliable computer, contrary to the contemporary push for a larger, centralized design: Whirlwind.
Steele fund-raised to create the CRC, and developed a small, drum-based general purpose computer for this purpose (CADAC).
Steele was kicked out of CRC in the ensuing scuffle to build the computer, and Gordon Turnbull took over.
CRC finally delivered the CADAC, but it was too late as Whirlwind had won by default.
CADAC design was released to Steele, who went on to found DICO.
Steele claims that a decentralized early warning system was possible, but he never got the chance to prove it.
Marchetti lost face, Lincoln Labs was established and started work on Whirlwind II a.k.a. SAGE.
I ran this past spouse and he speculates that the CADAC concept might have inspired the creation of BUIC, which was a smaller scale, less-centralized backup system to SAGE. There's not a lot written about BUIC project history, so I don't know where I would even start with investigating a possible link.
Still, it's making me want to learn more about early computerized air defense/EWS, non-SAGE ideas that were around at the time, as well as early minicomputers (of which I think CADAC, MADDIDA, G15, LGP-30, etc. can reasonably be classed).
just found out "4tran" refers to transgender individuals on 4chan and not an abbreviation of the early programming language
DLCC recognizes the month of June as Veterans Appreciation Month.
Thank you, Veterans! 😊
🫡
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The Y2K Scare: How the World Prepared for a Potential Digital Disaster That Never Fully Happened. Also known as the Millennium Problem & Year 2000 Problem
As the clock approached midnight on January 1, 2000, millions of people around the world wondered if modern civilization was about to face a technological collapse. Would airplanes fall from the sky? Would banks lose financial records? Would power grids fail? Could military systems malfunction? The fear surrounding the “Y2K bug” became one of the largest global technology scares in modern…
DEC PDP-1. From the Hewlett-Packard Company Archives.
