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1977: PDP ties together emergency reporting network [message #369174]

Wed, 20 June 2018 15:59

hancock4
Messages: 6746
Registered: December 2011

Karma: 0

Senior Member

PDP 11/10 and 11/40 computers used to route Chicago's emergency calls
in 1977.

article at:
https://books.google.com/books?id=3AcUztjLOHcC&lpg=PA55& amp;dq=bell%20telephone%20police&pg=PA55#v=onepage&q &f=false

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Re: 1977: PDP ties together emergency reporting network [message #369175 is a reply to message #369174]

Wed, 20 June 2018 16:33

Anonymous

Karma:

Originally posted by: Grant Taylor

On 06/20/2018 01:59 PM, hancock4@bbs.cpcn.com wrote:
> PDP 11/10 and 11/40 computers used to route Chicago's emergency calls
> in 1977.

I've got a long time friend & colleague who managed 911 Computer Aided
Dispatch systems for about 20 years.

"Life Threatening" and "Where's the Fire" have a new meaning for his
pages during system outages / issues. }:-)

--
Grant. . . .
unix || die

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Re: 1977: PDP ties together emergency reporting network [message #369220 is a reply to message #369174]

Thu, 21 June 2018 13:16

m. thompson
Messages: 22
Registered: January 2013

Karma: 0

Junior Member

On Wednesday, June 20, 2018 at 3:59:36 PM UTC-4, hanc...@bbs.cpcn.com wrote:
> PDP 11/10 and 11/40 computers used to route Chicago's emergency calls
> in 1977.
>
> article at:
> https://books.google.com/books?id=3AcUztjLOHcC&lpg=PA55& amp;dq=bell%20telephone%20police&pg=PA55#v=onepage&q &f=false

The Rhode Island Computer Museum has a pair if PDP-11/45 systems that were part of the Brooklyn fire dispatch system. The DV11 and DH11 serial controllers were connected to fire pull boxes.

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Re: 1977: PDP ties together emergency reporting network [message #369221 is a reply to message #369220]

Thu, 21 June 2018 13:17

m. thompson
Messages: 22
Registered: January 2013

Karma: 0

Junior Member

On Thursday, June 21, 2018 at 1:16:51 PM UTC-4, m. thompson wrote:
> On Wednesday, June 20, 2018 at 3:59:36 PM UTC-4, hanc...@bbs.cpcn.com wrote:
>> PDP 11/10 and 11/40 computers used to route Chicago's emergency calls
>> in 1977.
>>
>> article at:
>> https://books.google.com/books?id=3AcUztjLOHcC&lpg=PA55& amp;dq=bell%20telephone%20police&pg=PA55#v=onepage&q &f=false
>
> The Rhode Island Computer Museum has a pair if PDP-11/45 systems that were part of the Brooklyn fire dispatch system. The DV11 and DH11 serial controllers were connected to fire pull boxes.

http://www.ricomputermuseum.org/Home/equipment/dec-pdp-11-45

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Re: 1977: PDP ties together emergency reporting network [message #369229 is a reply to message #369175]

Thu, 21 June 2018 15:24

Charlie Gibbs
Messages: 5313
Registered: January 2012

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Senior Member

On 2018-06-20, Grant Taylor <gtaylor@tnetconsulting.net> wrote:

> On 06/20/2018 01:59 PM, hancock4@bbs.cpcn.com wrote:
>
>> PDP 11/10 and 11/40 computers used to route Chicago's emergency calls
>> in 1977.
>
> I've got a long time friend & colleague who managed 911 Computer Aided
> Dispatch systems for about 20 years.
>
> "Life Threatening" and "Where's the Fire" have a new meaning for his
> pages during system outages / issues. }:-)

Now we have a literal interpretation of "Blue Screen of Death". 1/2 :-)

--
/~\ cgibbs@kltpzyxm.invalid (Charlie Gibbs)
\ / I'm really at ac.dekanfrus if you read it the right way.
X Top-posted messages will probably be ignored. See RFC1855.
/ \ Fight low-contrast text in web pages! http://contrastrebellion.com

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Re: 1977: PDP ties together emergency reporting network [message #369231 is a reply to message #369229]

Thu, 21 June 2018 16:00

Anonymous

Karma:

Originally posted by: Grant Taylor

On 06/21/2018 01:24 PM, Charlie Gibbs wrote:
> Now we have a literal interpretation of "Blue Screen of Death".

Not in my friends case. 1) the machines were running AIX which doesn't
have a BSOD. 2) The dispatchers were well trained and drilled
(monthly) to run manual dispatching. The dispatchers absolutely HATED
manual dispatch but were quite capable of doing it.

So even if the Computer Aided Dispatch system went down, dispatching did
not stop.

But it does put what is mission / life critical in a different perspective.

--
Grant. . . .
unix || die

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