Thread View: alt.folklore.computers
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Started by hanc...
Wed, 20 Jun 2018 19:59
1977: PDP ties together emergency reporting network
Author: hanc...
Date: Wed, 20 Jun 2018 19:59
Date: Wed, 20 Jun 2018 19:59
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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&dq=bell%20telephone%20police&pg=PA55#v=onepage&q&f=false
Re: 1977: PDP ties together emergency reporting network
Author: Grant Taylor
Date: Wed, 20 Jun 2018 20:33
Date: Wed, 20 Jun 2018 20:33
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On 06/20/2018 01:59 PM, hanc...@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
Re: 1977: PDP ties together emergency reporting network
Author: m. thompson
Date: Thu, 21 Jun 2018 17:16
Date: Thu, 21 Jun 2018 17:16
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On Wednesday, June 20, 2018 at 3:59:36 PM UTC-4, han...@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&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.
Re: 1977: PDP ties together emergency reporting network
Author: m. thompson
Date: Thu, 21 Jun 2018 17:17
Date: Thu, 21 Jun 2018 17:17
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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, han...@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&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
Re: 1977: PDP ties together emergency reporting network
Author: Charlie Gibbs
Date: Thu, 21 Jun 2018 19:24
Date: Thu, 21 Jun 2018 19:24
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On 2018-06-20, Grant Taylor <gta...@tnetconsulting.net> wrote: > On 06/20/2018 01:59 PM, hanc...@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
Re: 1977: PDP ties together emergency reporting network
Author: Grant Taylor
Date: Thu, 21 Jun 2018 20:00
Date: Thu, 21 Jun 2018 20:00
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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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