28 Dec
2017
28 Dec
'17
4:10 a.m.
We gained John von Neumann on this day in 1903, and if you haven't heard
of him then you are barely human... As computer science goes, he's right
up there with Alan Turing. There is speculation that he knew of Babbage's
work; see
https://cstheory.stackexchange.com/questions/10828/the-relation-between-bab…
.
--
Dave Horsfall DTM (VK2KFU) "Those who don't understand security will
suffer."
28 Dec
28 Dec
4:26 a.m.
On 12/27/17 17:10, Dave Horsfall wrote:
We gained John von Neumann on this day in 1903, and if
you haven't
heard of him then you are barely human... As computer science goes,
he's right up there with Alan Turing. There is speculation that he
knew of Babbage's work; see
https://cstheory.stackexchange.com/questions/10828/the-relation-between-bab…
.
Coincidentally, I ran across my copy of Goldstine, "The computer from
Pascal to von Neumann", as I was cleaning up, and plan to reread in the
coming weeks. Short of checking the references in von Neumann's
papers, I would think something would in there.
N.
5:38 a.m.
I would recommend https://deepblue.lib.umich.edu/handle/2027.42/3972
<https://deepblue.lib.umich.edu/handle/2027.42/3972>
which is the Preliminary Discussion of the Logical Design of an Electronic Computing
Instrument, which describes the IAS machine.
On 2017, Dec 27, at 5:10 PM, Dave Horsfall
<dave(a)horsfall.org> wrote:
We gained John von Neumann on this day in 1903, and if you haven't heard of him then
you are barely human... As computer science goes, he's right up there with Alan
Turing. There is speculation that he knew of Babbage's work; see
https://cstheory.stackexchange.com/questions/10828/the-relation-between-bab…
.
--
Dave Horsfall DTM (VK2KFU) "Those who don't understand security will
suffer."
8:10 a.m.
On 2017-12-28 09:10, Dave Horsfall wrote:
We gained John von Neumann on this day in 1903, and if
you haven't
heard of him then you are barely human... As computer science goes,
he's right up there with Alan Turing. There is speculation that he
knew of Babbage's work
And those like me who are Masters Of No Trade know that he started as a
pure maths person, inventing the encoding of ordered pairs and ordinal
numbers in formalized set theory.
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8:15 a.m.
On Thursday, 28 December 2017 at 9:10:56 +1100, Dave Horsfall wrote:
We gained John von Neumann on this day in 1903, ...
If you're in to this sort of thing, it's interesting to note that it's
also Linus Torvalds' birthday (66 years younger than John).
Greg
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7:40 p.m.
New subject: XINU for the 68000 / 68010
I came across this page while looking for man pages to SYSVr3 for someone... Completely
unrelated but I thought it’d be interesting to someone. Apparently it can be built with
GCC/GAS/Binutils from a 680x0 based SUN.
http://unixpc.taronga.com/xinu7300/
From the readme:
Xinu for the ATT7300 (3B1) and MECB (Motorola Educational Computer Board)
This is an implementation of the Vol. I Xinu for diskless singleboard 68000/68010 systems.
The ATT7300 is the preferred system, having at least .5M memory vs. the MECB's
cramped 32K.
ATT7300 hardware and the Xinu support provided here:
MC68010, 10Mhz
.5M-2M onboard memory, up to 4M with expansion memory
VA space of 4M, monolithic page table (not used here for paging)
RS232 port with software-selectable baudrates to 19.2K baud, with NEC7201 SLU (used for
Xinu console)
Line clock interrupting at 60Hz, used for Xinu clock.
Keyboard interface with MC6850 SLU--Xinu tty driver for it here, but not compatible with
the serial encoding from the native keyboard, so you need to attach another terminal to
use it.
Centronics parallel printer port (start on LPR driver here, fleshing it out is a good
student project)
Floppy disk--not supported in Xinu, but used to boot monitor/downloading system
Hard disk--not supported or needed.
Realtime clock--not supported in Xinu.
Telephone interfaces--not supported.
Bitmap graphics monitor interface--not supported.
MECB hardware and Xinu support:
MC68000 CPU, 4Mhz
32K memory
2 serial ports, each with MC6850 SLUs, available as Xinu ttys or dlcs. Easy to add a
third MC6850 at 0x30001, for 2nd dlc. (However running a Xinu net takes more than 32K
memory, not so easy)
MC68230 PI/timer: Timer used as Xinu clock, setup for LPR driver using PI.
8:06 p.m.
New subject: XINU for the 68000 / 68010
Jason Stevens <jsteve(a)superglobalmegacorp.com> wrote:
I came across this page while looking for man pages to
SYSVr3 for
someone... Completely unrelated but I thought it’d be interesting
to someone. Apparently it can be built with GCC/GAS/Binutils from a
680x0 based SUN.
Small clarification: The AT&T 3B1 isn't related to Suns. It was
made for AT&T by Convergent. It was a nice box; I owned one for a while
and have many happy memories thereof.
Hmmm, are there other Xinu versions in the archive?
Thanks,
Arnold
11:20 p.m.
New subject: XINU for the 68000 / 68010
The relationship with GNU & SUN would be that the SUN & VAX were the first target
platforms for GCC/GAS/Binutils. So it would have been expected that if you were running a
68000 version of GCC it’d probably be running on a SUN-2 or SUN-3. Not to mention it was
their build platform as mentioned here:
ftp://ftp.cs.purdue.edu/pub/comer/XINU-68K.README
There is some additional platforms here:
ftp://ftp.cs.purdue.edu/pub/comer
I haven’t tried to run any of it yet though.
From: arnold(a)skeeve.com
Sent: Thursday, 28 December 2017 10:07 PM
To: tuhs(a)tuhs.org; jsteve(a)superglobalmegacorp.com
Subject: Re: [TUHS] XINU for the 68000 / 68010
Jason Stevens <jsteve(a)superglobalmegacorp.com> wrote:
I came across this page while looking for man pages to
SYSVr3 for
someone... Completely unrelated but I thought it’d be interesting
to someone. Apparently it can be built with GCC/GAS/Binutils from a
680x0 based SUN.
Small clarification: The AT&T 3B1 isn't related to Suns. It was
made for AT&T by Convergent. It was a nice box; I owned one for a while
and have many happy memories thereof.
Hmmm, are there other Xinu versions in the archive?
Thanks,
Arnold
2 Feb
2 Feb
6:04 a.m.
On 27/12/2017, Dave Horsfall <dave(a)horsfall.org> wrote (in part):
We gained John von Neumann on this day in 1903, and if
you haven't heard
of him then you are barely human... As computer science goes, he's right
up there with Alan Turing. There is speculation that he knew of Babbage's
work;
--
Dave Horsfall DTM (VK2KFU) "Those who don't understand security will
suffer."
This does not answer the potential Babbage connection but I ran across
the following paragraph by Dyson ("A Walk through Johnny von Neumann's
Garden" from here http://www.ams.org/notices/201302/index.html)
"I got to know Johnny personally when I came
to the Institute for Advanced Study in 1948. He
was then actively engaged in building the institute
computer and learning how to use it. He under-
stood from the beginning that two of the most
important uses of the machine would be to predict
weather and to model climate. He hired engineers
to build the machine and meteorologists to use
it. The chief engineer was Julian Bigelow, and the
chief meteorologist was Jules Charney. Each of
them had a gang of young people to do the heavy
work, persuading a totally new kind of machine to
produce some real science. I enjoyed very much the
young people, with their rowdy conversation and
irreverent behavior. There was an amusing clash
of cultures between these young hooligans and the
older members of the institute. As Einstein wrote
to his friend the queen of the Belgians when he
arrived at the institute in 1933, Princeton was a
quaint and ceremonious village populated by demi-
gods on stilts. The culture of the older members
was based on formal politeness and respect for
the academic hierarchy. Johnny and I were on the
side of the hooligans."
N.
11:01 p.m.
Dave Horsfall wrote on Thu, 28 Dec 2017 09:10:56 +1100 (EST):
> We gained John von Neumann on this day in 1903,
and if you haven't heard
> of him then you are barely human...
John (Johnny to his English-speaking friends) von Neumann was a
colossal figure in 20th Century mathematics and physics with a
photographic memory, an ability to work on several jobs at once, a
passion for partying, and a broad range of research publication in
computer science, economics, game theory, mathematics, probability,
and physics.
There are several books about him that I've found enjoyable reading.
He is included with all of the other major quantum pioneers in the
BibNet Project bibliography archive at
http://www.math.utah.edu/pub/bibnet/authors/v/von-neumann-john.bib
[change .bib to .html for a similar view in a Web browser, but with
live hyperlinks].
Those bibliographies strive to offer complete coverage of all known
publications by their subject scientists, as well as coverage of
publications about them, and their works.
Reports of bibliographic omissions are always welcome, and updates
will be made in short order. In the case of von Neumann, there are
likely numerous still-classified reports of his work in the Manhattan
Project, the post-WW-II effort to build the hydrogen bomb, and his
consulting with numerous government and military agencies, that remain
unknown and unavailable. [In the case of Alan Turing, some of his
classified war-time work has finally been released to the public, and
every such known instance has been included in his bibliography.]
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