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101090 discussions

Early CD-ROMs was: NASA computers circa 1969

by mcguire＠neurotica.com

On 01/04/2013 03:46 PM, Bill Sudbrink wrote: > Yes. That was the test platform for an early CD-ROM company > I worked for. We also had a Meridian Data CD-Publisher. > It wrote 9-track tapes that we sent to PDO Holland. They > would send us back some count of CDs along with the glass > master. That was what? 1983 or maybe 1984. I had one of > those glass masters in my office for a while but I've lost > it somewhere along the way. You didn't work for a flaming asshole of epic proportions who went by the name of "Murf", did you? -Dave -- Dave McGuire, AK4HZ New Kensington, PA

13 years, 2 months

Looking for: IBM 5110/5120 I/O bus terminator

by derschjo＠gmail.com

Subject line says it all -- and I know this is a long shot. Anyone have one going spare? Finally got my 5120 working (after scrounging a keyboard, display, and an ROS board from a parts machine*) and of course I had no idea that a terminator was required in order for the internal drives to function. Iimagine these are hard to find, but I haveto ask... Thanks as always, Josh (*stillneed a Command/Language ROS board since it turns out my 5120 had not one but two bad ROS boards, but I've borrowed it from my 5110 for the time being. I'm assuming that it's pretty much impossible to repair these things...)

13 years, 2 months

Daemonic Quake players [was RE: FS. Working PDP 11/83 deskside case (UK)]

by RichA＠vulcan.com

From: geneb Sent: Wednesday, January 09, 2013 2:59 PM > On Wed, 9 Jan 2013, John Many Jars wrote: >> On 9 January 2013 19:07, Richard <legalize at xmission.com> wrote: >>> PDP-11 can't DOOM. PC wins. >> My four year old daughter (at the time): >> "I want to make more BLOOD!" > One of the most efficient killing machines I've ever seen in Quake was the > daughter of our tech support lead (way back in my sysadmin days). The > nerd rage that would flow on the net when someone discovered they'd been > repeatedly and brutally hammered by an 11 year old wisp of a girl wearing > pony tails and a frilly pink dress was *epic* > I nearly fell out of my chair in a fit of laughter the time I heard her > mutter, "Quit running! You'll only die tired!" ROTFLMAO. That's going to keep me snickering for a long time. That line could come from one of the better SF stories I've read, say Walter Jon Williams or John Scalzi. Thank you. Rich Alderson Vintage Computing Sr. Systems Engineer Vulcan, Inc. 505 5th Avenue S, Suite 900 Seattle, WA 98104 mailto:RichA at vulcan.com mailto:RichA at LivingComputerMuseum.org http://www.LivingComputerMuseum.org/

13 years, 2 months

Commodore SX-64 new picture tubes for sale 25$ + shipping

by rampaginggreenhulk＠yahoo.com

I probably have 8 left. I dropped one. Man that shadow mask was all warped to heck. Weird forces are in play when there's an implosion.

13 years, 2 months

looking for supercomputers, Ardent, Stardent, Titan or Portable Graphics Mainframe

by michael.99.thompson＠gmail.com

> From: Richard <legalize at xmission.com> > Date: Tue, 08 Jan 2013 11:01:44 -0700 > Subject: Re: looking for supercomputers, Ardent, Stardent, Titan or Portable Graphics Mainframe > > In article <BLU002-W211CABDFBFAD39F8F9562C7BA240 at phx.gbl>, > Randy Dawson <rdawson16 at hotmail.com> writes: > >> Any of these lying around? I ask every year or so... > > I have had ebay searches running for 10+ years and have never turned > up anything. I think these things are extremely scarce to > non-existent at this point. I don't recall hearing of any in the > hands of collectors anywhere, but of course, as soon as I say this, > someone will pop up and say "I have 3". :-) The RICM has one... https://sites.google.com/a/ricomputermuseum.org/home/Home/equipment/ardent-… -- Michael Thompson

13 years, 2 months

Major progress on S2I project

by LYNCHAJ＠YAHOO.COM

Hi! The N8VEM SCSI to IDE/SD project has been renamed the S2I project. There has been large progress of late and things are really shaping up. I have distributed 3 of the 4 remaining prototype PCBs and have accumulated a short list of hardware changes for the next PCB revision. http://n8vem-sbc.pbworks.com/w/page/62549548/S2I%20Status Thanks and have a nice day! Andrew Lynch

13 years, 2 months

TRS-80 Model II Fixed Disk Controller Support

by ball.of.john＠gmail.com

>Some of the controllers also provided power on the control? Cable to power >on secondary enclosures. Technical bulletins state that yes the cabling for a second drive is modified to accomidate for the system to power on the external drives by means of a relay. If you didn't get the memo and you attached a second drive you would be greeted by a resistor on the drive burning out. :)

13 years, 2 months

the Internet has turned 30 years old

by tom_a_sparks＠yahoo.com.au

" 30 years ago, at flip of a switch, the internet as we know it WAS BORN How TCP/IP nearly fell at the first hurdle By Gavin Clarke ? Get more from this author Posted in Networks, 3rd January 2013 08:59?GMT Thirty years ago this week the modern internet became operational as the US military flipped the switch on TCP/IP, but the move to the protocol stack was nearly killed at birth. The deadline was 1 January, 1983: after this, any of the Advanced Research Projects Agency Network's (ARPANET) 400 hosts that were still clinging to the existing, host-to-host Network Control Protocol (NCP) were to be cut off. The move to packet switching with TCP/IP was simultaneous and co-ordinated with the community in the years before 1983. More than 15 government and university institutions from NASA AMES to Harvard University used NCP on ARPANET. With so many users, though, there was plenty of disagreement. The deadline was ultimately set because everybody using ARPANET was convinced of the need for wholesale change. TCP/IP was the co-creation of Vint Cerf and Robert Kahn, who published their paper, A Protocol for Packet Network Interconnection in 1974. ARPANET was the wide-area network sponsored by the US Defense Advanced Research Projects Agency (DARPA) that went live in 1969, while Cerf had been an ARPANET scientist at Stanford University. The military had become interested in a common protocol as different networks and systems using different protocols began to hook up to ARPANET and found they couldn?t easily talk to each other, Cerf, who today is vice-president and "chief internet evangelist" at Google, announced the 30th anniversary of the TCP/IP switchover in an official Google blog post titled "Marking the birth of the modern-day Internet". The 1983 deadline?s passing was anticlimactic, Cerf recalls, considering how important TCP/IP became as an enabler for the internet. Cerf writes: When the day came, it?s fair to say the main emotion was relief, especially amongst those system administrators racing against the clock. There were no grand celebrations?I can?t even find a photograph. The only visible mementos were the ?I survived the TCP/IP switchover? pins proudly worn by those who went through the ordeal! >Yet, with hindsight, it?s obvious it was a momentous occasion. On that day, the operational Internet was born. TCP/IP went on to be embraced as an international standard, and now underpins the entire Internet. It was a significant moment, and without TCP/IP we wouldn?t have the internet as we know it. But that wasn?t the end of the story, and three years later TCP/IP was in trouble as it suffered from severe congestion to the point of collapse. TCP/IP had been adopted by the US military in 1980 following successful tests across three separate networks, and when it went live ARPANET was managing 400 nodes. After the January 1983 switchover, though, so many computer users were starting to connect to ARPANET - and across ARPANET to other networks - that traffic had started to hit bottlenecks. By 1986 there were 28,000 nodes chattering across ARPANET, causing congestion with speeds dropping from 32Kbps to 40bps across relatively small distances. It fell to TCP/IP contributor Van Jacobson, who?d spotted the slowdown between his lab in Lawrence Berkeley National Laboratory and the University of California at Berkeley ? just 400 yards and two IMP hops apart ? to save TCP/IP and the operational internet. Jacobson devised a congestion-avoidance algorithm to lower a computer's network data transfer speed and settle on a stable but slower connection rather than blindly flooding the network with packets. The algorithm allowed TCP/IP systems to process lots of requests in a more conservative fashion. The fix was first applied as a client-side patch to PCs by sysadmins and then incorporated into the TCP/IP stack. Jacobson went on to author the Congestion Avoidance and Control (SIGCOMM 88) paper (here) while the internet marched on to about one billion nodes. And even this is not the end of the story. Years later, in an interview with The Reg, Jacobson reckoned TCP/IP faces another crisis - and, again, it's scalability. This time, the problem is millions of users surfing towards the same web destinations for the same content, such as a piece of news or video footage on YouTube. Jacobson, a Xerox PARC research fellow and former Cisco chief scientist, told us in 2010 about his work on Content-Centric Networking, a network architecture to cache content locally to avoid everybody hitting exactly the same servers simultaneously. You can read more here. ? " - http://www.theregister.co.uk/2013/01/03/operational_internet_anniversary/ i've been meaning to post this PS: I was born in 1983 :cry: --- tom_a_sparks "It's a nerdy thing I like to do" Please use ISO approved file formats excluding Office Open XML - http://www.gnu.org/philosophy/no-word-attachments.html Ubuntu wiki page https://wiki.ubuntu.com/tomsparks 3 x (x)Ubuntu 10.04, Amiga A1200 WB 3.1, UAE AF 2006 Premium Edition, AF 2012 Plus Edition, Sam440 AOS 4.1.2,? Raspberry Pi model B, Microbee?Premium Plus+, Roland DXY-1300 pen plotter, Cutok DC330 cutter/pen plotter Wanted: GEOS system (C64/C128), Atari ST, Apple Macintosh (6502/68k/PPC only)?

13 years, 2 months

HP 3000 microcode

by jdbryan＠acm.org

Does anyone have a copy of the "HP 3000 Series III Microprogram Listing Manual" (part number 30000-90136)? Bitsavers has the Series II microcode manual (30000-90023), and while that is helpful, it's not authoritative for the Series III. Thanks. -- Dave

13 years, 2 months

Need help with a 11/23+ and a M8061 RL02 card.

by g-wright＠att.net

The system has M8189 cpu M8067 memory 256k M8029 RX02 M8061 RL02 M8639 HD controller Everything works except the M8061. Jumpers are set to Factory default. I did add the Q22 jumper just in case. There is always a chance its a bad controller card. The drive will come on line but that's about it. If I try to boot from it. i get an error, 'no controller' . If its running under RT11, booted off the RX02 , I get 'cant read directory ' Any words of wisdom out there Thanks, Jerry

13 years, 2 months

TerminalsWiki: University terminal rooms

by legalize＠xmission.com

I imagine that UDel wasn't the only university to have a public terminal room. I created this page for UDel terminal history: <http://terminals.classiccmp.org/wiki/index.php/User:Legalize/UDelTerminals> If anyone else is interested in capturing the history of other terminal rooms at other sites (commercial, government, or educational), that would be a great addition to the wiki. Right now this is an article in my user space, but it could easily be moved to a more public space if others contribute similar articles. -- "The Direct3D Graphics Pipeline" free book <http://tinyurl.com/d3d-pipeline> The Computer Graphics Museum <http://computergraphicsmuseum.org> The Terminals Wiki <http://terminals.classiccmp.org> Legalize Adulthood! (my blog) <http://legalizeadulthood.wordpress.com>

13 years, 2 months

TRS-80 Model II Fixed Disk Controller Support

by ball.of.john＠gmail.com

>When this happens with a floppy drive, it is often due to the data cable having >being put on upside down, causing all the active signals to be grounded and >resulting in the drive being selected all the time. Perhaps a similar cabling >issue could cause this with an ST-225? I had the same idea until I switched the drive ID from 0 to 1. The BUSY light is now off and remains off on the drive until I tell DISKUTIL that the drive I want to work with is on channel 1 and not channel 0, at which point it probes for the drive (if it finds nothing it says the drive is not ready and asks to specify another drive), the BUSY light comes on and we get the same issue as before where it knows there's a drive but it can't format and says the disk is bad. The light WILL go out if the system reset is toggled which is probably because the controller is reset in the process. The cabling is keyed on the edge connector side and pin 1 is noted on both the ribbon cable and the header on the disk controller so there's no probable chance the wiring is wrong. I don't see why it could be trying to find an existing error map AFTER I specify what the factory had printed on it. It would make more sense to search for that BEFORE it prompted me to specify it. (http://i11.photobucket.com/albums/a166/ballsandy/Computer%20related/CRW_778 9.jpg) It could be ignoring it like you said but there's no way to try with a differently formatted disk at this time. Unsure if WRITE PROTECT is stuck. Seagate's own papers don't even mention a write protect jumper so I assume it simply does not exist for the drive. (ftp://ftp.seagate.com/techsuppt/mfm/st225.txt) I also don't see WRITE PROTECT listed as a pin on the ST506/412 interface cabling.

13 years, 2 months

TRS-80 Model II Fixed Disk Controller Support

by ball.of.john＠gmail.com

According to this website (http://nemesis.lonestar.org/computers/tandy/hardware/storage/mfm.html) I finally managed to get hold of a Type 4 hard disk controller for the TRS-80 Model II/16/6000 family of computers (which looks like this: http://i11.photobucket.com/albums/a166/ballsandy/Computer%20related/CRW_7791 .jpg) Sourcing the external drive enclosures for Tandy systems is near impossible unless you have a lot of spare money handy so I instead did some research and mounted a Seagate ST-225 INSIDE the computer on a custom made mounting bracket over the PSU. (http://i11.photobucket.com/albums/a166/ballsandy/Computer%20related/100_276 9.jpg) The drive is a known good drive and formats and boots under MS-DOS. In order to run it under Xenix 1.03 I need to format it again using DISKUTIL. The controller can see the drive and seems to know it's ready but the problem is that the utility instantly fails the entire disk the moment you start the format. (http://i11.photobucket.com/albums/a166/ballsandy/Computer%20related/CRW_779 0.jpg) Tried with other ST-412 interface drives (full height, half height and 3.5") and they all do the exact same thing. Lonestar.org states that the '225 SHOULD be compatible with my controller. I looked up any documentation I could find and I see nothing about any sort of configuration the controller that needs to be set to support the drive. It should just plug in and work. The only thing I seem to find odd is the BUSY light on the drive is stuck on when the controller is attached which seems suspicious. Anyone here got a slue how I should be tacking this problem?

13 years, 2 months

Recovering DC42 images?

by IanK＠vulcan.com

Hi all, This is one I've been working on for a bit without success, and I'm hoping the community has some ideas to offer. I'm attempting to recover the Lisa Xenix images on BitSavers so I can boot up a Lisa for an exhibit. I've managed to get the images onto a Mac IIci over the network (rather than through the dance of PC to Mac file formats), but DiskCopy 4.2 doesn't recognize them. I used the boot.dc42 image on LisaEm and got it to boot as far as it will (Ray acknowledges in the documents that Xenix doesn't work on LisaEm yet), but of course the emulation is likely written to the image: still, it suggests the images are likely OK. I found information that suggested it was necessary to use an older Mac to generate the correct disk format: I've formatted my 400K disks on a Mac Plus under System 6.0.3, and run DC on that Mac, too. Still no joy. Any suggestions? Thanks -- Ian

13 years, 2 months

any stash of MODEM info? Bitsavers not much....

by COURYHOUSE＠aol.com

any stash of MODEM info? Bitsavers not much.... unless I am looking in wrong places. We have some we have accumulated set aside here waiting for the day of a fast scanner but want to thin the stack if it has already been done elsewhere. cc me offlist also... I do not always read my digest file. thanks Ed Sharpe _www.smecc.org_ (http://www.smecc.org)

13 years, 2 months

Difference between RSX-11M and M+ (was: What PDP11 OS in 20MB Disk Space)

by bqt＠update.uu.se

On 2013-01-01 19:00, Dave McGuire<mcguire at neurotica.com> wrote: > > On 12/31/2012 04:39 PM, Rob Jarratt wrote: >>> >> Straight 11M (non-plus) does. (fits in 10 actually) Early RSTS/E, like >> >v8, >>> >>should, but not 10 and likely not 9. RT11 does. >> > >> >BitSavers looks like it has 11M 4.0 in a 19MB virtual tape, here: >> >http://bitsavers.informatik.uni-stuttgart.de/bits/DEC/pdp11/magtapes/rsx11m/ >> >Assuming that is the right one to go for? >> > >> >I know next to nothing about RSX, what is the difference between plus and >> >non-plus? > Oh jeeze, lots of stuff...I'm quite drunk at the moment, but I seem to > recall..named directories being a biggie. Johnny (if he's montoring) > can expound. Since my name was mentioned... There are plenty of differences. Virtual terminals for one. Which also means that only M+ have batch queues. Named directories. Logical names. Variable send/receive. Secondary pool. Split I/D space support. Supervisor mode libraries. Accounting. Online reconfiguration. Mixed massbuses (probably not that big win today, when people run simulators anyway). Memory is managed slightly differently. I think that only M+ have disk shadowing and disk caching (also perhaps less used in emulated systems). Lots of tasks end up having more memory available in M+, which means they can handle more data, or have more capabilities. This also affects things like SYSGEN, which in M+ is rather more user friendly. There are probably more things, if I think some more. But this gives a fair idea. M+ is basically more. > I ran 11M (non-plus) on an 11/34 for many years. Rock solid, fast, > very nice OS. Agree. 11M is fine. It's just that if you can run M+, I'd recommend it. But it do require much more of the hardware. It takes way more memory, and it requires certain features in the CPU, that 11M do not. 11M can be run on basically any PDP-11, as long as you have atleast about 56K of memory (Better with more, of course.) Johnny

13 years, 2 months

Wait! There's more including MS-DOS 1.25!!!! was Sanyo MBC-550 (Yuck!) software available

by rigdonj＠intellistar.net

I'm still digging. I found more 550 stuff. I think this is everything that came with the 550. Here's a chance for you 550 owner's to get the whole set at one shot! Original DS-DOS box and invoice. Original Sanyo Easywriter ver 1.3 disk Original Sanyo disk box with 550 dos ver 2.11 and BASIC 1.25, two original Sanyo disk for InfoStar (set B disk 2 and 3 of 4; disks 1 and 4 are below), original Sanyo disk for DOS 1.25 and BASIC ver 1.1 Original Sanyo disk box with all three original disk of set A, WordStar and CalcStar and a backup copy of DS-DOS. Two card board dummy disks used to protect the floppy drives duing shipment. Joe > >A few weeks ago we were talking about the Sanyo 550 series and someone mentioned one of the alternates operating systems that supported 80 track drives in the 550. I said that was DS-DOS by Michtron. > > Today I found an old Sanyo disk package with four disks for the 550. One of them is DS DOS 2.11, one is InfoStar, one is MailMerge/SpellStar and the other is a disk of misc utilities. The first three are original disks. In additon, the InfoStar, MailMerge/SpellStar are Sanyo labeled disks that came with the 550. If anyone wants them, trade me something I can use and they're all your's. > > Joe

13 years, 2 months

Sun 2/120 Front panel

by earl＠baugh.org

Howdy, I'm looking for a source for a front bezel / plate / panel for a Sun 2/120. Anyone happen to know where I might be able to obtain one? (I'd also be interested in the correct Mouse / Keyboard that goes with the Sun 2 series) I'm slowly working on restoring it, and the panel is the major missing piece. (I just recently found a replacement power supply, so I hope to be able to get it to boot shortly...) Thanks. Earl

13 years, 2 months

SCSI over UTP, i.e. extender

by marcogb＠xs4all.nl

Purely out of curiosity, is anyone aware of the possible existence of LVD/SE SCSI (e.g. HD68) over UTP (RJ45) extenders? I'm aware that one normally goes for FC, or a SCSI<=>FC bridge, but those tend to be rather pricey. - MG

13 years, 2 months

ValueWord & ValueNotes

by marcogb＠xs4all.nl

This was software me my parents used in the 1980s on our family computer. Does anyone know how and where to obtain this, for old time's sake? Thanks in advance. - MG

13 years, 2 months

WTT/WTB: SGI IP59 quad-processor CPU board

by marcogb＠xs4all.nl

Does anyone have this, willing to sell or --- more ideally, for me --- willing to trade a SGI IP59 quad-processor CPU/node- board? (P/N: 030-1989-003) I have several (non-SGI) systems of interest, Alphas (PWS 500au's and DS10s), but also Sun SPARCs (e.g. Ultra 10) and also at least one HP Integrity rx2620 "Montecito" (largely maxed out, with 24 Gbytes RAM) to trade. All of the above are max'ed out, in terms of 'specs' & configurations, plus there are many (PCI, PCI-X, AGP, etc.) options available. I also have an IP53 dual-processor CPU/node-board, as a possible 'replacement' (in case an IP59 board would have to be removed from a working system) and may even have a quad-processor one (i.e. the one I currently have installed). I'd also like to emphasize, to avoid confusion, that these are things I have to offer. Not so much things I'd like (or deem sensible) to trade 1:1. The reason I'm looking for this part, as well as other parts, is because I'm trying to get as much out of my system as possible, as I'm working on my portfolio as a graphic designer. Either way, please don't hesitate to contact me. I'm open to ideas and offers. Thanks in advance. - MG

13 years, 2 months

WTT/WTB: SGI DMediaPro DM2/DM3 LVDS cables

by marcogb＠xs4all.nl

Does anyone have a complete set of SGI DMediaPro DM2/DM3 LVDS cables, willing to trade/sell? (See my other WTT/WTB thread, for the IP59 board, for possible items of interest to trade.) I'm specifically looking for both a white (P/N: 018-0985-001) and black (P/N: 018-0946-001) LVDS cable, to connect a DM3 to a VBOB. Thanks in advance. - MG

13 years, 2 months

WTT/WTB: SGI Indigo² IMPACT (4 Mbyte) TRAM board

by marcogb＠xs4all.nl

Does anyone have one of these TRAM (Texture Memory, 4 Mbytes ideally, P/N: 030-0676-003) boards, for an SGI Indigo? IMPACT (e.g. for HighIMPACT) graphics card to trade/sell? (See my previous threads for possible items to trade.) Thanks in advance. - MG

13 years, 2 months

FS: 2× Compaq DS10

by marcogb＠xs4all.nl

Two Compaq AlphaServer DS10 systems, each with a 466 MHz EV6 processor and 2 Gbytes RAM (I can also reduce it to, say, 256 Mbytes). There are various options additionally, including SCSI RAID (e.g. Smart Array 5300 or even Smart Array 6400), GbE (DEGXA, original and/or modified), stock ELSA GLoria Synergy, various Radeon 7500 (also All-In-Wonder), NEC USB, audio cards and more. One of the two DS10s 'as-is', as it may have a faulty CD-ROM drive (it's also missing its 'badge/name plate' with "ALPHASERVER DS10" on it, below the "Compaq" logo, in case you should care). The skins are all intact, in good/excellent shape and included. I have various options to offer. In any event, please contact me for more information, offers or potential trades (I'm in particular looking for SGI parts). I can also show pictures and arrange a 'test drive' or 'tour' via SSH or Telnet. The systems are located in the Netherlands and I'm willing to ship (internationally). - MG

13 years, 2 months

FS: HP AlphaServer DS15

by marcogb＠xs4all.nl

Anyone interested in a barely used, mint-condition, HP AlphaServer DS15? Equipped with a 1 GHz 21264C/EV68CB, maxed out with 4 Gbytes RAM, (*original HP*, active-cooled, noise-free) ATi Radeon 7500, (rare) DS15 audio option, DEGX2 (dual-port Gigabit Ethernet) and a hot-swap front access disk cage (I may also be able to include two disks and sleds, contact me about that). A nice touch, especially for those used to the DS10, is that SCSI (KZPEA) is on-board. Besides the on-board KZPEA, I also have a KZPDC (HP/Compaq Smart Array 5300, Ultra160 SCSI RAID HBA) and/or KZPEC (HP Smart Array 6400, Ultra320 SCSI RAID HBA), as well as an HP/Neterion XFrame 10GbE NIC. Here are some pictures: - <http://marcogb.home.xs4all.nl/tmp/pictures/02.jpg> - <http://marcogb.home.xs4all.nl/tmp/pictures/03.jpg> - <http://marcogb.home.xs4all.nl/tmp/pictures/05.jpg> Feel free to e-mail me offers. - MG

13 years, 2 months

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