test-drb

test-drb@ccmp.vtda.org

101090 discussions

by guykd＠optusnet.com.au

>They confirmed my order. Fingers crossed they actually ship them, and it doesn't >turn into an argument about honoring transactions. Though probably, a higher postage >cost would be fair. 88 floppies and covers will weigh a bit. (Should have bought 100.) >4 Pack of 5.25" Floppy Diskettes with Sleeves >COM1147 22 $0.89 $19.58 >Subtotal: $19.58 >Shipping & Handling: $6.95 >Tax: $0.00 >Order Total: $26.53 They DID ship them. Just received notice of shipment. You know, the postage from Garland, Texas to LA, CA for a box of 88 floppies would have been more than $6.95. How much more, I don't know. Could they have made a loss on that transaction, hence the price bump? > That's not the same BG Micro we bought stuff from in the > early 80's, is it? > bill >The one with the yellow photocopied catalog? That's the same one. >The owner/founder passed away a year or two ago and I believe his daughter is running it now. >Will Can anyone estimate the likely US postage for that package? Please let me know. If BG Micro are badly out on that transaction, I'll contact them and make it up to them. Would not if it was some big corp, but BG Micro are clearly honest. Such a rarity. Funny, I was thinking of Diogenes and his lantern just the other day. https://en.wikipedia.org/wiki/Diogenes Guy

6 years, 11 months

Seeking documentation for Tallgrass Technologies "Shortcut"

by ethan.dicks＠gmail.com

Hi, All, Another recent find, a Tallgrass Technologies "Shortcut", 80286 upgrade for 8-bit PCs. I've found several reviews online but no docs and no software (to enable the onboard 16K cache). One thing that concerns me is that on this unit, the 24-pin socket at U18 is empty. It might be nothing. This one does not have the memory daughtercard on J1, so perhaps they are related. If anyone has docs or has one and could tell me if their U18 is empty (and if not, what goes there), that would be great. Thanks! -ethan

6 years, 11 months

Posting of set of boards from a data General nova 3 triple option

by jeffreybirkin＠hotmail.com

I have a set of boards from a data General nova 3 triple option Location: Vancouver Island Canada If interested please email Jeffreybirkin at hotmail.com Sent from my iPhone

6 years, 11 months

What connector is this?

by mattislind＠gmail.com

I am looking for the mating male connector. Anyone that has an idea what connector this is? There is nothing indicated on the connector itself about what the manufacturer it is. https://i.imgur.com/YzAfB2g.png /Mattis

6 years, 11 months

Anyone have any docs on Termiflex handheld terminals?

by ethan.dicks＠gmail.com

Hi, All, I recently picked up an item I've been looking for for quite some time, a handheld configuration "terminal" for a LeCroy 1440 HV chassis, called a "Model 1447 Local Diagnostic Controller". It's superficially like the DEC hand-held used in the field for internal RA81 diagnostics but it's not the same model. The 1447 is described in the 1440 docs, so I have the pinout (DA-15 with TxD and RxD on pins 2 and 3, plus ground and +5V on certain pins). A sticker on my 1447 indicates it's a "Termiflex" product but all I can find online are pictures and docs from the later LCD display units. This one has a 1x16 LED alpha display. Does anyone have any docs on older LED Termiflex units? Again, I have the pinout but I'm curious about the innards. Unfortunately, the 4 case latches are difficult to unlock without some magic shim tool or I'd just open mine and reverse-engineer the PCB (there are four 2mm x 8mm slots with some sort of metal barbs at the bottom that seem to need a specific tool to open - a small blade has been unhelpful so far). Pinouts (cf J3) https://prep.fnal.gov/catalog/hardware_info/lecroy/high_voltage/images/fig2… >From the LANL docs for the 1440 I've found so far, it's unclear at the moment if TxD and RxD are +/-12V or +5V and GND but that's easy to check on the TxD line before I put anything on the RxD line. Thanks for any info. -ethan

6 years, 11 months

KL10-A/KL10-B differences

by jnc＠mercury.lcs.mit.edu

> From: Eric Smith > two separate backplanes that are combined for the RH20s (if > present), one backplane for the A through D positions (upper 2/3 of > each module slot), and one for E and F. How odd. DEC was quite happy to do hex backplanes elsewhere, and it looks >from the photo (EK-108OU-PD-002, pg. 3-8) like the MASSBUS connector are wired to both backplanes, so they had to stay together. >> On the -PA to -PV upgrade, could the backplane really be done with >> some wraps? I ask because I saw in one manual, talking about a >> KL10-C to -PV upgrade, it calls for a backplane swap-out. EK-0KL20-IN-001 ("KL10-Based DECSystem-20 Installation Manual"), in Section 10.2 "KL10-PV Upgrade Procedure for KL10-C", if anyone wants to look. > I'm not entirely sure, so I easily could have been mistaken. I know > -PV to -PW just needs some wraps. -PA to -PV may have required more > significant backplane changes. Definitely they have different part > numbers for the -PA and -PV backplane assemblies. Yeah, DEC was quite happy to have the FS guys do wirewrap on install (e.g. for the NIA20). So my guess is that if the default upgrade for at least one -PA to -PV (above) was to replace the backplane, that would have been the standard way, because of some issue. Whether it was just too many wires to do manually, or if there were also trace issues, it would be interesting to know. Oh, it's also possible that since the -PA to -PV involved a faster clock, I wonder if some backplane lines turned into twisted pair, or coax? Noel

6 years, 11 months

16-bit ISA tape controllers

by sales＠elecplus.com

These do not come available very often. Not affiliated with seller, etc. WTS EVEREX SYSTEMS PCT04, REF, qty 5, CALL, TAPE CONTROLLER 16 BIT ISA Sajjad Mukhi Sales/purchasing FML Computers Inc Phone: 407-637-2922 Toll: 407-637-2922 Fax: 407-362-7826 Cell: 407-718-8778 Mukhi at fml-computers.com Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 830-370-3239 cell sales at elecplus.com --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

6 years, 11 months

RALGOL - A PDP8 ALGOL 60

by boris＠summitclinic.com

Thanks for that link Charles and also thanks to Mark Kahrs for obituary on Roger Abbott. I started out on PDP-8 in 1968 which was the first time I had hands on access to a computer at UofCalgary. Would have loved to have had access to one when I did my MSc in neurophysiology in 1975 but obviously Oxford in 1972 had much better funding than Uof0 (University of Ottawa). Roger Abbott had a PDP-8 to acquire data from his insect muscle preparations and noticed that 1972 Journal of Physiology papers no longer behind a paywall when was looking what type of research he was doing. Uof0 was still using rotating smoked drum cylinders to record muscle twitches in some labs and the lab I was in had a high speed oscilloscope camera which one could use to shoot long strips of neuron spike activigy >from a mouse cerebellar culture. A technician was available to measure the time intervals between spikes and that's how I was supposed to do my project to look for connections between simultaneously recorded cells in the cultures. My request for a computer was denied and I was given $200 to build an electronic device to time the spikes and send them to the Uof0 360 mainframe where my FORTRAN code generated cross-correlograms and other neat graphs on a line printer http://drgimbarzevsky.com/Computers/UofOTerminal/TerminalCircuitBoards1.html Despite comments that I seemed to be working on a graduate degree in electrical engineering rather than neurophysiology, what I learned doing large scale TTL state-machine devices was invaluable when I moved to Vancouver and worked at UBC Pharmacology where lab computers were the norm and did my last bit of PDP-8 programming on a PDP-12 to speed up gathering data from a mouse diaphragm preparation which was easily done by rewriting the whole thing in PDP-8 and Link-8 assembler. The researcher whose machine it was used FOCAL for everything which made for horrendously slow data analysis. That done, I finally got to play on what I still view as one of the best computers ever made, the PDP-11. Fortunately at UBC there were a lot of researchers who mixed writing code and building their own hardware with doing their electrophysiologic experiments. That was a neat time when dicussions we'd have were whether a particular bit of data acquisition was to be done with optimized assembler code vs building our own dedicated board which would plug into Unibus on 11/34. I liked the latter approach but it was easier to debug PDP-11 ASM than chasing down bugs on a custom interface board having to spend time writing custom diagnostics to see if things were really working as designed. Have an old Algol book around from early 1970's and remember reading it then but liked FORTRAN more but most of my code was FORTRAN calling PDP-11 ASM functions on a PDP-11. All my PDP-8 programs from early 1970's are on paper tape and have never been transferred to other media. Algol 60 looks interesting enough to use given compact code and neat architecture that will try running it on PDP-8 simulator someday. Problem with simulators is that almost all of PDP-8 and PDP-11 code I wrote was to interface to A/D's and D/A's or parallel ports to run experiments. Once got a C64, wrote graphing code in C64 Basic and photographed my TV which was way faster than writing code in PDP-11 ASM to display graphs and data on oscilloscope screen from D/A's. Got into VB once PC's were cheaper than Macs and notice there's a lot of VB5 and VB6 code on Roger Abbott's final code. VB6 is something I still use and once I get my VB6 code running under Wine, windoze will be a distant memory. Was neat to see where other physiologists had been in early 1970's where it seemed I spend more time building the tools I needed to get the data I wanted than to do the experiments. Boris Gimbarzevsky >I played around with this algol 60 compiler for the PDP8 and succeeded in >getting it to run. I have not found any other notes, so I thought that I >would give a leg up to the next one that wants to work on it. > >-chuck > >-------- > >This ALGOL 60 implementation for the PDP8 was written by Roger H. Abbott >while he was at Oxford. > >The bits are here: >http://www.bitsavers.org/bits/DEC/pdp8/papertapeImages/russ.ucs.indiana.edu… > >A copy of the manual here: >https://archive.org/details/hack42_ROG_ALGOL_Compiler > >A paper here: >http://pdp8.de/download/RogAlgol.pdf > >Mr. Abbotts business is here: >http://www.angelfire.com/biz/rhaminisys/index.html > >The website or the host is a bit sketchy. The business is probably defunct. >I found a link that said Mr. Abbott died in the early 2000. > >The system is two parts: the compiler and the runtime. > >This is all assuming the use of OS/8. > >To create the SV file for the compiler: >.R ABSLDR >*INTRUN.BN,ALGCOM.BN,COMOS8.BN$ >.SAVE SYS:ALGCOM.SV >.R ALGCOM.SV > >To create the SV file for the runtime system/loader: >.R ABSLDR >*FPP.BN,ALGRUN.BN,RUNOS8.BN >.SAVE SYS:RALGOL.SV >.R RALGOL.SV > >There are other options for the FPP.BN for other hardware possibilities. >FPEAE8.BN for the classic pdp8 EAE and FPPEAE.BN for the PDP8/e EAE. This >needs some testings. > >Running an ALGOL program: > >.TYPE FLOAT.AL >'BEGIN' > 'REAL' A,B; > TEXT(1,"HELLO WORLD!"); > SKIP(1); > A := 3.141592; > B := COS(A); > TEXT(1,"A = "); > RWRITE(1,A); > SKIP(1); > TEXT(1,"B = COS(A) = "); > RWRITE(1,B); >'END' >$$$$$ > >.R ALGCOM > >ROGALGOL MK40 >OUT<IN*FLOAT<FLOAT > >SIZE 39 > >.R RALGOL > >ROGALGOLOADER >INPUT FILENAME ?*FLOAT.AC > >ENDS 0251 >^^PHELLO WORLD! >A = +0.314159E+001 >B = COS(A) = -0.999999E+000 >^^PHELLO WORLD! >A = +0.314159E+001 >B = COS(A) = -0.999999E+000 >^^C >. > >The source AL file must end with a few $$$$ or an odd fault code will >result. The fault codes are embedded in the source files as addresses. > >The compiler output file has the AC suffix. > >After the loader runs it will pause with a ^ prompt and the user will have >to enter a ^P to proceed or ^C to quit. > >The manual is the best description for the user.

6 years, 11 months

5 1/4 diskettes available

by wrcooke＠wrcooke.net

BG Micro, a surplus electronics dealer I buy from sometimes, has diskettes for sale. I don't know anything about them, but thought it may be of interest. I have no affiliation other than being a customer on their mailing list. Here is a link to the site: https://www.bgmicro.com/4-pack-of-5-25-floppy-diskettes-with-sleeves.aspx Will

6 years, 11 months

M7819 DZ11 boards and others for parts

by useddec＠gmail.com

I have a ton of DEC boards that I will probably never use. I sell off what I can, when I can, but have large quantities of some and no need for them. I have to do something and I like recycling cans and plastic, but not computer parts. If anyone can use these or any other DEC board, feel free to contact me off list. I would prefer to sell in qty, but will consider all requests. If you are parting them out and don't want them, I will reduce the price and keep the fingers. Thanks, Paul

6 years, 11 months

DEC MS630/M7609 Question

by w2hx＠w2hx.com

Hi there. I just acquired a board with the number M7609. It was advertised as an M630-CA which my research tells me is supposed to be 16MB. How do I tell on the board if this is 8MB or 16MB? There does not seem to be a suffix on the board that I can see. What to look for? 73 Eugene W2HX

6 years, 11 months

cctalk Digest, Vol 58, Issue 9

by athornton＠gmail.com

> On Jul 9, 2019, at 10:00 AM,Tomasz Rola wrote: > > BTW, you would like a ride to the past? I would like a ride to the > future. Although from what I have seen so far, maybe not... Spider Robinson did a story about this, entitled ?The Time-Traveler.? The method, while as easily-implemented now as it was then, is not pleasant. Adam

6 years, 11 months

Email delivery protocols / methods.

by cctalk＠gtaylor.tnetconsulting.net

Here's pot stirrer for a holiday Friday afternoon: How many different protocols / methods can we collectively come up with for how email can be transferred? I'm primarily thinking about between servers (MTA-to-MTA). But I'm also willing to accept servers and clients (MTA-to-MUA). Where you can / could run at least one server yourself. ? SMTP(S) ? UUCP (rmail) ? MMDF ? X.400 ? Microsoft Exchange proprietary protocol ? Novell GroupWise proprietary protocol ? Lotus (IBM) Domino proprietary protocol ? FidoNet (FTN) ? BITNET ? Direct file access - group Post Office ? Direct file access - mail spool -- Grant. . . . unix || die

6 years, 11 months

KL10-A/KL10-B differences

by jnc＠mercury.lcs.mit.edu

> Erom: Eric Smith Hey, thanks for taking the time to provide all those details. As you no doubt saw, our emails crossed; I had managed to work out my own what the difference was. I'd been looking at this page: http://corestore.org/DEC2065.htm and saw the two backplanes, and assumed one was the EBox, and one the MBox - wrong! But eventually I got it straight... One some other points you covered: > The 1080 was intended to replace a KA10 or KI10 ... It only needed a > single DTE20 for the internal console PDP-11, and it didn't need an > RH20 because the disk would be attached via an RH10 Got it; makes sense. Could an -A be upgraded to a -B by swapping the I/O backplane? (Yes, the wiring to the I/O connectors would have to be changed too, and that might have been too difficult.) But could the APR handle it (perhaps with one or more board changes)? > The -PA and -PV designations .. are for the "arithmetic processor" > (APR), which is the main CPU portion of the KL10. Useful terminology to know. Do you happen to know what 'PV' stands for - or is it just a random letter code? >> my new theory is that it's the MBox ... that is the >> difference between the KL10-A and the KL10-B. > It's not just the MBOX; there are significant EBOX differences as > well. Various modules from the entire CPU are different, and the > backplane wiring is slightly different. It was possible to upgrade a > -PA to -PV by swapping modules and adding some wraps to the > backplane Do note I said "KL10-A and the KL10-B", not 'Model A and Model B'... I assume the APR's in the -A and -B were identical, it was just the I/O backplane, etc which were different. On the -PA to -PV upgrade, could the backplane really be done with some wraps? I ask because I saw in one manual, talking about a KL10-C to -PV upgrade, it calls for a backplane swap-out. I've also got some open questions on the later things like the KL10-R, -PW, and MCA25, which are not covered well in the documentation avilable in bitsavers; do you know about the later variations? Noel

6 years, 11 months

Lots of Apple 1 computers @ VCF West

by cctalk＠snarc.net

Today I can announce that 10 original Apple 1 computers will be displayed at VCF West, and we're working on getting more. Several of these will be up-and-running. Original and current owners will join early Apple employees in a panel to discuss the computers, why they were purchased, how they were used, and what the owners plan to do in the future. So, buy your tickets online now. :) http://vcfed.org/wp/festivals/vintage-computer-festival-west/ -Evan

6 years, 11 months

QEMU sparc with networking that works

by dave＠661.org

Does anyone here have any sort of guide on how to get QEMU working emulating a sparc or sparc64 machine WITH networking that actually works? I've been banging my head against zillions of guides that are dreadfully outdated or just don't work. -- David Griffith dave at 661.org A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

6 years, 11 months

sun microsystem manuals

by fedorkow＠mit.edu

I have a small stack of Sun 3 Administrator, Networking and Diagnostic manuals, from about 1990.? Contact me if you think anyone would want them? ? Thanks /guy fedorkow

6 years, 11 months

ALGOL-60 obit

by mark.kahrs＠gmail.com

For those who like that sort of thing, here's more on the author of the PDP-8 ALGOL: https://ouscr.org.uk/index.php/obituaries?id=54

6 years, 11 months

KL10-A/KL10-B differences

by jnc＠mercury.lcs.mit.edu

> So my new theory is that it's the MBox (either the backplane, the > boards, or the wiring from it to connectors, etc) that is the difference > between the KL10-A and the KL10-B. So I wuz confused; the second backplane is not the MBox (which is apparently on the main CPU backplane), but an 'I/O backplane'. The one in the KL10-B is different+larger and holds the RH20s, etc. Noel

6 years, 11 months

KL10-A/KL10-B differences

by jnc＠mercury.lcs.mit.edu

So I'm a little puzzled by something, and I was wondering if anyone here knows the answer. So early KL10's (KL10-A's, to be precise) only support a single DTE20, and no RH20's. Later ones supported up to 4 of the former, and up to 8 of the latter. I always supposed this to be part and parcel of the 'Model A/Model B' CPU difference, but no... EK-0KL10-02 Part 1 (no title, seems to be notes for F/S) pg. 9, says both KL10-A and KL10-B's are PA (DEC jargon for the Model A CPU - below), but the former has no RH20's, the latter does. (A note at the bottom of the page says that a PA is a 'Model A', and describes it as having "internal channels". The PV is a 'Model B' - extended addressing, larger ucode, faster clock.) So my new theory is that it's the MBox (either the backplane, the boards, or the wiring from it to connectors, etc) that is the difference between the KL10-A and the KL10-B. Can anyone confirm this and/or provide details of the differences? Pictures of the MBox in a KL10-A would be good, too. Noel

6 years, 11 months

RS232 Communications HP9000 Series 320

by roger.addy＠charter.net

Hi All, First post here.? I have a HP9000 Series 320 computer with a HP Drive system.? It uses the HPL 2.1 (I think) operating system. I'm trying to get some ASCII files out of the system using the RS232 port.? The port is female DB9, so I'm assuming it's DCE.? I got an HP cable DB9 to DB25 which reorients the pins to PC standard RS232 DTE.? I can get a connection with the HP. but when I try to send a file it just shows the word "PROMPT" on the PC. I'm not sure what to do at this point.? I'm currently using Tera Term.? Any advice is appreciated. Roger Addy --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

6 years, 11 months

vax stuff

by jwest＠classiccmp.org

2 PrintServer 17 2 PrintServer 17 high-capacity (1500 sheet) paper trays 3 PS17 Maintenance kits (220 V) 2-4 PS17 Toner cartridges 2 LS17 Toner cartridges 1 MicroVax 3100 1 InfoServer 1000 1 vertical SCSI storage rack Apparently in Johannesburg.. If interest contact me off-list. J

6 years, 11 months

Wtd: advice upcoming visit to Bletchley Park / comp museum

by billdegnan＠gmail.com

Hi...I am arriving at Gatwick Airport this weds evening1045pm and I have a 17 hour layover. I'd like to visit the national computer museum at bletchley park about an hour north. I see I can rent a car from the airport and drive to a hotel near the museum. There are a few hotels with 24/7 desks. Concerns? Total time in England is 17 hours, 8 of which needed for sleep, plus travel to and from the airport and museum. Not sure how efficient the car rental return process is, etc. Need some buffer for unknowns Thanks in advance Bill

6 years, 11 months

RALGOL - A PDP8 ALGOL 60

by chd＠chdickman.com

I played around with this algol 60 compiler for the PDP8 and succeeded in getting it to run. I have not found any other notes, so I thought that I would give a leg up to the next one that wants to work on it. -chuck -------- This ALGOL 60 implementation for the PDP8 was written by Roger H. Abbott while he was at Oxford. The bits are here: http://www.bitsavers.org/bits/DEC/pdp8/papertapeImages/russ.ucs.indiana.edu… A copy of the manual here: https://archive.org/details/hack42_ROG_ALGOL_Compiler A paper here: http://pdp8.de/download/RogAlgol.pdf Mr. Abbotts business is here: http://www.angelfire.com/biz/rhaminisys/index.html The website or the host is a bit sketchy. The business is probably defunct. I found a link that said Mr. Abbott died in the early 2000. The system is two parts: the compiler and the runtime. This is all assuming the use of OS/8. To create the SV file for the compiler: .R ABSLDR *INTRUN.BN,ALGCOM.BN,COMOS8.BN$ .SAVE SYS:ALGCOM.SV .R ALGCOM.SV To create the SV file for the runtime system/loader: .R ABSLDR *FPP.BN,ALGRUN.BN,RUNOS8.BN .SAVE SYS:RALGOL.SV .R RALGOL.SV There are other options for the FPP.BN for other hardware possibilities. FPEAE8.BN for the classic pdp8 EAE and FPPEAE.BN for the PDP8/e EAE. This needs some testings. Running an ALGOL program: .TYPE FLOAT.AL 'BEGIN' 'REAL' A,B; TEXT(1,"HELLO WORLD!"); SKIP(1); A := 3.141592; B := COS(A); TEXT(1,"A = "); RWRITE(1,A); SKIP(1); TEXT(1,"B = COS(A) = "); RWRITE(1,B); 'END' $$$$$ .R ALGCOM ROGALGOL MK40 OUT<IN*FLOAT<FLOAT SIZE 39 .R RALGOL ROGALGOLOADER INPUT FILENAME ?*FLOAT.AC ENDS 0251 ^^PHELLO WORLD! A = +0.314159E+001 B = COS(A) = -0.999999E+000 ^^PHELLO WORLD! A = +0.314159E+001 B = COS(A) = -0.999999E+000 ^^C . The source AL file must end with a few $$$$ or an odd fault code will result. The fault codes are embedded in the source files as addresses. The compiler output file has the AC suffix. After the loader runs it will pause with a ^ prompt and the user will have to enter a ^P to proceed or ^C to quit. The manual is the best description for the user.

6 years, 11 months

Lots of Apple 1 computers @ VCF West

by jnc＠mercury.lcs.mit.edu

> From: Evan Koblentz > what the owners plan to do in the future. Sell the Apple I and retire to a tropical island on the proceeds, if they have any sense! :-) Noel

6 years, 11 months

Jump to page:

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

test-drb