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<DIV>Pretty sure my first computer, a Heathkit H8 kit, was a PDP-8. Also built the H9 terminal, and then added an aftermarket 24-line w/ lowercase-characters upgrade. The biggest thing, though, was expanding the original 4K ram to 12K in the H8!</DIV>
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<DIV>Maybe a little fuzzy about the finer details; I was 11 yo. Ouch... that was 40 years ago. :(</DIV>
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<DIV>Jim</DIV>
<DIV>RC4</DIV>
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<DIV><FONT size=2>James David Smith</FONT></DIV>
<DIV><SPAN><A href="http://www.theatrewireless.com/"><FONT size=2><STRONG>RC4 Wireless</STRONG> / Soundsculpture Incorporated</FONT></A><FONT size=2> <BR></FONT></SPAN></DIV>
<DIV><FONT size=2>Office 919-229-9953 | Skype rc4jds</FONT><SPAN><SPAN id=xeaddf09c72c14cafa206565aa656aa27> </SPAN></SPAN></SPAN></SPAN></FONT></SPAN></FONT></SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></SPAN></SPAN><SPAN id=x2bc95f0c492f4165be2186ee167890af><FONT size=2><FONT face=Tahoma><FONT size=3></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></FONT></SPAN></FONT></FONT></DIV>
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<DIV>------ Original Message ------</DIV>
<DIV>From: "Dan Sheehan via Stagecraft" <<A href="mailto:stagecraft@theatrical.net">stagecraft@theatrical.net</A>></DIV>
<DIV>To: "Stagecraft Mailing List" <<A href="mailto:stagecraft@theatrical.net">stagecraft@theatrical.net</A>></DIV>
<DIV>Cc: "Dan Sheehan" <<A href="mailto:dsheehan.sml@gmail.com">dsheehan.sml@gmail.com</A>></DIV>
<DIV>Sent: 27-Nov-15 7:37:04 AM</DIV>
<DIV>Subject: Re: [SML] turning off light boards</DIV>
<DIV> </DIV>
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<BLOCKQUOTE class=cite2 cite=CAF5K5-ULL2Dg09VE10ZVzdKVFY95YsEXUmCWq6bZ0mRaBowmNA@mail.gmail.com type="cite">
<DIV dir=ltr>DEC PDP-8's in GenRad 1790-series board testers.
<DIV>12 bits wide, octal notation for 4 3-bit groups.</DIV>
<DIV>Hand-toggled in a few machine code instructions to boot it up.</DIV>
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<DIV>That was well back in BC </DIV>
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<DIV>(Before Children)</DIV></DIV>
<DIV class=gmail_extra><BR>
<DIV class=gmail_quote>On Fri, Nov 27, 2015 at 2:00 AM, Jerry Durand via Stagecraft <SPAN dir=ltr><<A href="mailto:stagecraft@theatrical.net">stagecraft@theatrical.net</A>></SPAN> wrote:<BR>
<BLOCKQUOTE class=gmail_quote style="PADDING-LEFT: 1ex; BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex">In the late 1970s I ran a couple of PDP 11 systems to control<BR>semiconductor testing in a pilot line. I still have the hard disk from<BR>the first IBM 286 sold out here sitting on my shelf next to the<BR>prototype for the first mass-produced computer voice board.<BR><BR>Ah, history. That and $12.95 might buy me a soda.<BR>
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<DIV class=h5><BR>On 11/26/2015 10:49 PM, Steven Santos via Stagecraft wrote:<BR>> I used a PDP-11 in high school back in the early 1990's. One of my<BR>> after school jobs at the time was assisting a friends father<BR>> installing and maintaining Digital Alpha and Sun Solaris servers, as<BR>> well as the workstations that went with them. Had one client that had<BR>> 3 PDP-11's (a 55, a 65 and a 70 IIRC), 2 racks of Sun servers (6ish)<BR>> and and 8(!) digital alpha servers (2100 series I believe it was) and<BR>> a home-brewed box they called "big bertha" that had a ton of hard<BR>> drives in it and wired to it. No one ever told me what these guys<BR>> did, but we spent a LOT of time making network authentication work<BR>> right. The PDP-11's did not want to work with Sun's network<BR>> authentication. Neither did the Windows for Workgroups (3.11)<BR>> machines want to do it.<BR>><BR>> I still remember being blown away that an office of 12 would have this<BR>> many servers running, and that each of these guys had a bleeding edge<BR>> W4W 386, a DEC term and a Solaris box (with 2 screens!) sitting on<BR>> each desk. My whole school had 1 pdp-11 that powered 2 classrooms of<BR>> workstations, plus the school admin terminals.<BR>><BR>> Now my phone has more computing power than that whole office did.<BR>> ---<BR>> Steven Santos<BR>> Director<BR>> Simply Circus, Inc.<BR>> 86 Los Angeles Street<BR>> Newton, MA 02458<BR>><BR>> P: 617-527-0667<BR>> F: 617-934-1870<BR>> E: <A href="mailto:Steven@SimplyCircus.com">Steven@SimplyCircus.com</A><BR>><BR>><BR>> On Thu, Nov 26, 2015 at 4:23 PM, Kristi R-C via Stagecraft<BR>> <<A href="mailto:stagecraft@theatrical.net">stagecraft@theatrical.net</A>> wrote:<BR>>> DEC made tanks. I used to program on a PDP 11/70. I think you could have bombed it and it would have been fine.<BR>>><BR>>> Kristi R-C<BR>>><BR>>>> On Nov 26, 2015, at 12:32 PM, Chip Wood via Stagecraft <<A href="mailto:stagecraft@theatrical.net">stagecraft@theatrical.net</A>> wrote:<BR>>>><BR>>>> Did that in '75 when NSA retired their PDP-1 (Serial # 1) for a PDP-10 back when core was core and NSA was only a little paranoid. Ran a million cycles of random data thru it and they said that wasn't enough. So we yanked it and put it on a shelf. That thing could still be there after 40 years.<BR>>>><BR>>>> Chip 1<BR>>>><BR>>>>> On 11/24/2015 8:41 AM, Alf Sauve' via Stagecraft wrote:<BR>>>>>> On 11/23/2015 10:36 PM, Richard John Archer via Stagecraft wrote:<BR>>>>>> volatile core memories<BR>>>>> Never heard of "volatile" core memory. One of the advantages, possible the only one, of 'core" memory was that it was not volatile. It actually was a real pain if you were trying to scrub it clean of classified data. Been there. done that.<BR>>>><BR>>>> ____________________________________________________________<BR>>>> For list information see <<A href="http://stagecraft.theprices.net/" rel=noreferrer>http://stagecraft.theprices.net/</A>><BR>>>> Stagecraft mailing list<BR>>>> <A href="mailto:Stagecraft@theatrical.net">Stagecraft@theatrical.net</A><BR>>>> <A href="http://theatrical.net/mailman/listinfo/stagecraft_theatrical.net" rel=noreferrer>http://theatrical.net/mailman/listinfo/stagecraft_theatrical.net</A><BR>>> ____________________________________________________________<BR>>> For list information see <<A href="http://stagecraft.theprices.net/" rel=noreferrer>http://stagecraft.theprices.net/</A>><BR>>> Stagecraft mailing list<BR>>> <A href="mailto:Stagecraft@theatrical.net">Stagecraft@theatrical.net</A><BR>>> <A href="http://theatrical.net/mailman/listinfo/stagecraft_theatrical.net" rel=noreferrer>http://theatrical.net/mailman/listinfo/stagecraft_theatrical.net</A><BR>>><BR>> ____________________________________________________________<BR>> For list information see <<A href="http://stagecraft.theprices.net/" rel=noreferrer>http://stagecraft.theprices.net/</A>><BR>> Stagecraft mailing list<BR>> <A href="mailto:Stagecraft@theatrical.net">Stagecraft@theatrical.net</A><BR>> <A href="http://theatrical.net/mailman/listinfo/stagecraft_theatrical.net" rel=noreferrer>http://theatrical.net/mailman/listinfo/stagecraft_theatrical.net</A><BR><BR></DIV></DIV><SPAN class="im HOEnZb">--<BR>Jerry Durand, Durand Interstellar, Inc. <A href="http://www.interstellar.com/" rel=noreferrer>www.interstellar.com</A><BR>tel: <A href="tel:%2B1%20408%20356-3886" value="+14083563886">+1 408 356-3886</A>, USA toll free: <A href="tel:1%20866%20356-3886" value="+18663563886">1 866 356-3886</A><BR><BR><BR></SPAN>
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<DIV class=h5>____________________________________________________________<BR>For list information see <<A href="http://stagecraft.theprices.net/" rel=noreferrer>http://stagecraft.theprices.net/</A>><BR>Stagecraft mailing list<BR><A href="mailto:Stagecraft@theatrical.net">Stagecraft@theatrical.net</A><BR><A href="http://theatrical.net/mailman/listinfo/stagecraft_theatrical.net" rel=noreferrer>http://theatrical.net/mailman/listinfo/stagecraft_theatrical.net</A><BR></DIV></DIV></BLOCKQUOTE></DIV><BR><BR clear=all>
<DIV><BR></DIV>-- <BR>
<DIV class=gmail_signature>...Dan Sheehan<BR>Fixer of things that break<BR><BR></DIV></DIV></BLOCKQUOTE></DIV>
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