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PDP-1 Spotting - The Amherst Mystery


March 1, 2021
Yet another PDP-1 riddle, extended mode.
Yesterday, we solved the mystery of two well-known images, formerly known as “The PDP-1 at the Tech Model Railroad Club”, with the help of the Hacker News community. A triumph of shared knowledge.
In 1971, the German artist Daniel Chodowiecki (1726 – 1801) commented his etching “Enlightenment”
(Aufklärung) by the words, “However, if the sun only rises, mists do no harm.”
(Indessen wenn die Sonne nur aufgeht, so schaden Nebel nichts.) In real life, mists rise only to reveal another bank of fog. Which is the very process of research. And this is certainly no exception. So this is a post about annother bank of fog, in the amazing form factor of a fully transitorized electronic contraption apt to manipulate 18-bit words in realtime according to a stored program and human interaction. ....

United States , University Of Massachusetts , Marvin Minsky , Friden Flexowriter , Ben Gurley , Davide Weisberg , Sonne Nur , Daniel Chodowiecki , David Walden , Raymond Nickerson , John Mccarthy , Tom Bennett , Marcin Wichary , Ken Olsen , Ed Fredkin , Program Head , Lawrence Livermore National Laboratory , Research Computer System , University Of Massachusetts Amherst , Lincoln Laboratory , Digital Equipment Corporation , Vermont Research , Tech Model Railroad Club , Gleimaus Museum , Computer History Museum , Tech Model Railroad ,

Train Spotting (I)


A story of trains, computers, and two images.
This is at the same time a continuation to what may become a loose series, namely, “Things on the Web that aren’t what they seem to be”, and the beginning of an entirely new one. Anyway, this is the story of two photos that are rather well known in the context of computer history. You may even have seen one or the other popping up on a website.
Since you are reading this blog, you may be even familiar with the broader context.
Context
In 1961, the MIT recieved a DEC
PDP-1 computer from Digital Equipment Corporation as a donation. It was one of the very first production models and DEC’s motivation was a multiple one: First, the PDP-1 was somewhat of a commercial version of MIT’s experimental TX-0 computer ....

United States , Marvin Minsky , Jamie Parker Pearson , Albertw Kuhfelds , Gordon Bell , Spacewar Dan Edwards , Steve Russell , Wesley Clark , Peter Sampson , Peter Samson , Lyle Bickley , Trans World Airlines , Aluminum Company Of Canada , Gift Of Hewlett Packard Company , Digital Equipment Corporation , Us Air , Amherst Club , Boston Computer Museum , University Of Michigan , International Telephone , Eastern Airlines , Us State Department , Tech Model Railroad Club , Computer History Museum , Automated Data Exchange , Model Railroad Club ,