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Come for ENIAC, Stay for UNIVAC and Skeduflo

32 points2 daysuniqueatpenn.wordpress.com
opan4 hours ago

I was hoping Minnesota would be mentioned, I had an older relative that once worked for UNIVAC. I didn't realize how spread out it was.

From Wikipedia:

>The UNIVAC was manufactured at Remington Rand's former Eckert-Mauchly Division plant on W Allegheny Avenue in Philadelphia, Pennsylvania.[1][9] Remington Rand also had an engineering research lab in Norwalk, Connecticut, and later bought Engineering Research Associates (ERA) in St. Paul, Minnesota. In 1953 or 1954 Remington Rand merged their Norwalk tabulating machine division, the ERA "scientific" computer division, and the UNIVAC "business" computer division into a single division under the UNIVAC name.

I'm guessing all the coolest stuff had long since happened before my relative was there.

JoeDaDude3 hours ago

For a while I worked at what was then the Sperry Rand Corporation (now Unisys) which had some pride in their heritage as the descendant of the Univac Corporation founded by ENIAC inventors Eckert and Mauchly. In a glass case there was a vacuum tube circuit said to be a memory unit of the original ENIAC. No one seemed to know much about it, casting doubt on the claimed provenance of the device. The tube circuit resembled the ones shown in the photo linked below (although none of those in the photo are from ENIAC).

https://en.wikipedia.org/wiki/File:Women_holding_parts_of_th...

(This is a repost of an older comment I made)

drivers9922 minutes ago

Seems like an ENIAC decade ring counter. Used to store a digit from 0 to 9.

(Ignore the rest of my comment. Duh. The caption says: "English: "U.S. Army Photo", number 163-12-62. Left: Patsy Simmers (mathematician/programmer), holding ENIAC board. Next: Mrs. Gail Taylor, holding EDVAC board. Next: Mrs. Milly Beck, holding ORDVAC board. Right: Mrs. Norma Stec (mathematician/programmer), holding BRLESC-I board.")

In that picture it looks like they are showing different generations of similar pieces of logic (to show off the progress being made), with ENIAC on the left and more recent systems from left to right. The last one looks like it could belong to a LARC supercomputer (see the picture in https://en.wikipedia.org/wiki/UNIVAC_LARC )

The second one seems to match this, which says it's a decade counter from Univac I: https://www.rrauction.com/auctions/lot-detail/34912900705017...

drivers9926 minutes ago

I recently read a fascinating book I found in the library by an engineer who worked under Mauchly and Eckert and talks about working on ENIAC, BINAC, EDVAC, LARC, and UNIVAC. The book is "From Dits to Bits" by Herman Lukoff.

EvanAnderson33 minutes ago

The capitalization of "SkeduFlo" in the photo of the newspaper article made the intended pronunciation more apparent to me.