Motherboard (Was: The Burroughs B5900 and E-Mode
rodsmallwood52 at btinternet.com
Thu Oct 15 12:36:31 CDT 2015
I re-read the artical and backplane is what he called it. At least he
called the wirewrap version that.
I went back to my engineer days and tried to think what I would have
Bus board or main interconnect is all I can think of.
On 15/10/2015 18:18, Fred Cisin wrote:
>>> Wire wrapped motherboard and only one in existance ! Sheesh what a
> On Thu, 15 Oct 2015, Mark Linimon wrote:
>> minor quibble: I doubt they called it a "motherboard" in that time
>> More likely "backplane".
> Wasn't the B5900 from 1980?
> "Motherboard" was around then, although Burroughs might not have used it.
> Burroughs might very well have been more inclined to call it "backplane".
> "The earliest known reference to motherboard, the main circuit board
> of a personal computer, comes from a 1971 article in the British
> journal Electrical and Electronics Abstracts, according to the Oxford
> English Dictionary. The article refers to one daughterboard mounted
> vertically on a computer size motherboard."
> Google is not my friend today. I'm encountering multiple variants of
> "in the 1980s and 1990s, it became popular to put peripheral
> controllers on the board", red and blue text overlayed on a full color
> picture, "IBM PC was the first motherboard" (especially amusing since
> it was similar form factor and basic layout as Apple][)
> S100 backplane was often called a "motherboard".
> By 1978, the Apple ][ main board was called a "motherboard" in the
> industry, although IIRC, Apple preferred to call it a "logic board".
> IBM explicitly refused to call it a "motherboard" on the 5150.
> According to an unreliable source (my late uncle working there at the
> time), that was due to horrified shock at TV coverage of Black Panther
> speeches at Merritt College in Oakland in the late 1960s (when I had
> attended) and on, that had very extensive use of the word
> "MOTHERFUCKER", shortened to "MOTHER__" on TV. "UP AGAINST THE WALL
> MOTHER__!" To avoid association,
> IBM refused to call it a "motherboard".
> In the late 1960s, Merritt College had a 1401 and a 1620.
> Some say that Peralta Community College District's decision to move
> Merritt College up into the suburban hills in 1972? was in order to
> pull the campus out from under the Panthers. In early 1980s, Merritt
> College had a DEC with a rarely working third party drive, and then
> switched to 5150s in 1983. I taught up on the hill for 20 years,
> starting in 1983 (total of more than 30 years teaching in the PCCD
> Grumpy Ol' Fred cisin at xenosoft.com
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