test-drb

test-drb@ccmp.vtda.org

101090 discussions

by dgriffi＠cs.csubak.edu

While fantasizing having a PDP-11 of my own, I was reading about TRIPOS and decided that would be fun to play with. This line from the TRIPOS wikipedia article caught my attention: The most important TRIPOS concepts have been the non-memory-management approach (meaning no checks are performed to stop programs from using unallocated memory) Does this mean that any process is allowed to scribble anywhere in memory without provoking a segfault? -- David Griffith dgriffi at cs.csubak.edu 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?

17 years, 10 months

Daystar Universal PowerCache & SE/30...

by trag＠io.com

>Date: Sun, 22 Jun 2008 19:51:17 -0700 (PDT) >From: Cameron Kaiser <spectre at floodgap.com> >> The Daystar SE/30 adapter has a Programmable Logic Device on board >> which massages the connections. The PowerCache will not work >> plugged in directly. > >Wouldn't a IIsi adaptor work? IIRC the SE/30 PDS slot and IIsi PDS slot >are electrically compatible (but don't take my word for it). Hi Cameron. Good to see you around. Yes, the IIsi adapter will work, except, it will point it's expansion slot horizontally where there isn't room for a card. So one needs to use an extra Euro-Din connector of the right-angle type to adapt it to vertical. No soldering is required, as the pins of the connector will fit nicely in the IIsi adapter's connector's holes. This is explained in clearer detail on Gamba's site. Jeff Walther

17 years, 10 months

Amiga Development System and Sage IV

by daviderhart＠oldzonian.com

>> I was recently contacted by a software developer that had an old Sage IV >> computer that needed a new home. He found me through my Sage and Stride >> website (http://www.sageandstride.org). He used the Sage IV in the 1980's >> as part of an Amiga Development System. > >Was it like this unit? > > http://www.floodgap.com/retrobits/ckb/secret/cbm-rlorr-agony.jpg > http://www.floodgap.com/retrobits/ckb/secret/cbm-rlorr-agony2.jpg > Yes, it's the same Sage IV model. I'm familiar with 'Agony'. I met Dale Luck last year and he let me get my grubby hands on Agony to help revive it (still ongoing...). I've added pictures of the Sage IV I just received to the group of photos of the Amiga Development System at: http://entertainment.webshots.com/album/563890692JxMvHh The Sage IV pictures are the last in the batch. >This is the one Dale Luck exhibited and was christened, in typical Amiga >humor, as "Agony." The rest of the developer prototype photos I have are >on > > http://www.floodgap.com/retrobits/ckb/secret/lorraine.html > >They look slightly different than yours, which seems to be a later version? > >> From the docs and what I've learned by talking to other early Amiga >> developers, the Sage IV was used in developing a lot of the early Amiga >> code. > >This is also my understanding. > >-- >------------------------------------ personal: http://www.cameronkaiser.com/ >-- > Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com >-- Whenever people agree with me I always feel I must be wrong. -- Oscar >Wilde

17 years, 10 months

FS: MMJ plugs & cables

by given_todd＠wblake.com

Do you have any of the Amp plugs left? Todd A. Given Engineering Manager-Assembly Operations Whitney Blake Company Tel: (802) 463-1120 Fax: (802) 463-1111 given_todd at wblake.com

17 years, 10 months

George Carlin died :(

by sellam＠vintagetech.com

This is on-topic, I swear, as I'll demonstrate in a moment. But first, if you haven't yet heard, George Carlin died yesterday. For those outside of the US not familiar with his work, Carlin was an iconoclastic icon, and I use those terms explicitly literally in this case. The world will truly bu a suckier place without him. Today on Fresh Air (NPR talk program) Terry Gross ran old interviews with Carlin. In a 2004 interview (which I must've missed) he mentions that he enlisted in the military (he explains he did this to avoid the draft, i.e. the idea was he would get to choose what he wanted to do) and ended up in electronics and computers, and he specifically mentioned that he worked on analog computers. So besides being awesome, George Carlin was a hacker! LONG LIVE GEORGE!! Shit, piss, fuck, cunt, cocksucker, motherfucker, and tits!! -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

17 years, 10 months

Corestore - the Big Move

by mtapley＠swri.edu

At 12:00 -0500 6/22/08, Cameron Kaiser wrote: >Clearly his internal drives were hard. ...but warped, to the point of possibly causing a head crash. <smack> I did *not* just write that... -- - Mark 210-379-4635 ----------------------------------------------------------------------- Large Asteroids headed toward planets inhabited by beings that don't have technology adequate to stop them: Think of it as Evolution in Fast-Forward.

17 years, 10 months

Sun 3/60 for trade

by cclist＠sydex.com

> Date: Mon, 23 Jun 2008 07:36:33 -0700 > From: Lyle Bickley > If you're interested in vintage Sun gear - and it's not available in your > area - you might want to join the "Suns at Home" list. It's a low volume > list which keeps "on topic": The only vintage Sun gear that I own are a couple of coffee mugs and a couple of oddball (e.g. "The Last Bug") T-shirts. That's enough for me--at least both are still state-of-the-art in terms of utility. Cheers, Chuck

17 years, 10 months

Need Mac OS 6.0.4

by sellam＠vintagetech.com

I need Mac OS 6.0.4 in a format that can be downloaded with a PC (under WinXP), then moved to a disk that will boot on a Mac (IIci). Can someone help? If so, please contact me directly. Thanks! -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

17 years, 10 months

Sun 3/60 for trade

by wdonzelli＠gmail.com

> Realistically "common as dirt" doesn't sound very accurate to me. I've only > ever seen one Sun 3 system, and that was one being used by the Navy back in > '92. This might be something like someone from near one of the old DEC > sites saying PDT-11's (note I said PDT, not PDP) are common as dirt. > > Remember commonality can be location based. Yes, in some parts of the country, Sun-3s of all flavors were extremely common. I just saw one at the MIT Flea last week. They are drying up now, but still easy to find with some legwork. Maybe "common as galena". -- Will

17 years, 10 months

Daystar Universal PowerCache & SE/30...

by trag＠io.com

>Date: Sun, 22 Jun 2008 01:19:33 -0700 >From: Josh Dersch <derschjo at msu.edu> >Subject: Daystar Universal PowerCache & SE/30... >To: cctalk at classiccmp.org >Message-ID: <485E0B15.1080706 at msu.edu> >Content-Type: text/plain; charset=ISO-8859-1; format=flowed > >Scored a nice find for 50 cents today, a 50Mhz 68030 Daystar "Universal >PowerCache" accelerator card. From my research on the web this should >be SE/30 compatible, but requires some manner of a PDS adapter which is >essentially impossible to find. > >The card won't physically fit in the SE/30 due to the metal chassis >getting in the way -- anyone know if this is the only reason the adapter >is needed, or are there electrical differences as well? As my SE/30 is >kind of a mongrel anyway I wouldn't mind hacking up the chassis a bit to >allow the card to fit, but if the adapter is actually necessary I won't >bother... The Daystar SE/30 adapter has a Programmable Logic Device on board which massages the connections. The PowerCache will not work plugged in directly. However, the connector will physically fit, so there's some good opportunity there for electrical drama if you manage to plug it in without the adapter. The PowerCache only works in the IIci, IIvx and IIvi (and corresponding Performa models) without an adapter. The same is true for the 68040 based Turbo040. There is a large amount of discussion on this topic at 68kmla.net. Also at applefritter.com, but less active. And searching in Google on Gamba and SE/30 will turn up a very useful page of information. There is a fellow in Japan who apparently reverse engineered the PLD and designed and built (or caused to be designed and built) his own adapter design. However, he charges $200 for his adapter. Given the costs and risks involved (he probably has ~$10,000 sunk in the project) it is a reasonable price to charge, but most folks do not think it is a reasonable price to pay. I think Artmix and Twinspark would be good search terms to turn that up. Jeff Walther

17 years, 10 months

Corestore - the Big Move

by mross666＠hotmail.com

Well, here's what happened: http://www.corestore.org/coremove.htm Some days I wish I had taken up stamp collecting... Thanks to all who volunteered to give a home to the Convex! Mike http://www.corestore.org _________________________________________________________________ Search that pays you back! Introducing Live Search cashback. http://search.live.com/cashback/?&pkw=form=MIJAAF/publ=HMTGL/crea=srchpaysy…

17 years, 10 months

CP/M Z80 home brew computer circuit board

by lynchaj＠yahoo.com

> -----Original Message----- > From: Andrew Lynch [mailto:lynchaj at yahoo.com] > Sent: Friday, June 13, 2008 6:58 PM > To: 'cctalk at classiccmp.org' > Subject: CP/M Z80 home brew computer circuit board > > Hi, > > If anyone would like to make their own low cost home brew Z80 CP/M > computer please contact me by email. > > I have manufactured PCBs available for sale for $20 each plus shipping. > Preprogrammed EPROMs are also available for sale. > > The hardware and software are documented including schematics, source > code, binary images, PCB layout, parts list, etc. > > Details of the single board computer are available at: > > http://groups.google.com/group/n8vem > > Thanks! > > Andrew Lynch [AJL>] Hi All, Just in case anyone is still interested in building their own Z80 CP/M home brew SBC here is your opportunity. I have sold most of the PCBs in the first batch. As of this morning, I have less than 25% of remaining stock. I recommend that if you are going to order one of these PCBs then you should do it soon. I do not know if or when there will be another batch. If there is, it takes three weeks from my order to delivery and delivery to you is on top of that. Most likely, the demand for home brew / classic computer PCBs is fairly limited to a small group of enthusiasts. Ordering more PCBs at a practical unit cost is a delicate issue since I would like to get them out for people but also want to limit my personal expenses on this to a reasonable level. I do not expect to fully break even on the project but at least not lose my shirt on it either. Probably it means the next batch will involve a waiting list until there are enough people signed up to make the order practical. If anyone has better suggestions on how to do an amateur electronics project or a better idea, I am open to *constructive* input. I do appreciate your helpful comments. Please do not reply with "I don't like your project because..." Those comments aren't very helpful and IMO generally just contribute to the noise on CCTALK. Thank you in advance and have a nice day! Andrew Lynch

17 years, 10 months

INFOREX Core Memory Controller with DATARAM core memory cartridge / daughter card.

by billdeg＠degnanco.com

I received a box a while back containing an INFOREX Core Memory Controller >from late 1970 / early 1971 and a DATARAM core memory cartridge / daughter card. The DATARAM core is 4K I believe, but I did not open it to check. The box also contained a document (not the product docs) ranging from 1971-1978 about this type of 4K and 8K core memory, and some interesting pages about installing and using core memory with an S-100 data bus. It looks like the original owner was trying to figure out how to use this card. I assume that this particular DATARAM core memory could be used in both the pictured below DEC-like controller and a homebrew S-100 controller, but it was originally built for systems in the late 60's early 70's before the S-100 bus, etc... Given the condition of the card and memory, it's very possible that these components work. Now I just need a computer to put them in...hmmm. I have a basic idea of what the A, B and C card connectors do from some notes included with the board on a scrap of paper (assuming they're correct). For example pin 22 of connector A is a master reset, 25 is read enable, 26 is write enable. B 9 is a strobe and 13-19 are data in, etc. Let me know what info I can provide. I am not an engineer however. Pictures: http://www.vintagecomputer.net/inforex/ Can anyone shed light on the history/use of this? Thanks. Bill

17 years, 10 months

Listing paper FTGH (Yorks, UK)

by roger.holmes＠microspot.co.uk

On 21 Jun, 2008, at 08:52, cctalk-request at classiccmp.org wrote: > > Message: 33 > Date: Fri, 20 Jun 2008 22:12:04 +0100 > From: "John & Rachel" <john.haigh at zoo.co.uk> > Subject: Listing paper FTGH (Yorks, UK) > To: <cctech at classiccmp.org> > Message-ID: <000501c8d31a$4fa20dd0$4401a8c0 at JOHN> > Content-Type: text/plain; charset="iso-8859-1" > > Must be a common problem getting rid of spare paper. Did you get > any takers as I have some too. Anyone who was disapointed? Hi, Not disappointed, but Yorkshire is just too far away and paper is heavy so shipping is too expensive. If anyone in the Kent/Sussex/ Essex area has any cheap listing paper at least 13" wide (for a 120 column drum line printer) I would be interested. I am also interested in punched card drawers, paper tape cabinets, one more paper tape winder, an engineer who can repair IBM keypunches, 4mm patch cables for IBM patch panels (they have ball bearings in the plugs), an IBM keypunch control drum, data plugs or cables for connecting to IBM keypunches and Flexowriters. Any documentation or other items related to the ICT 1300 series, especially the mysterious 1302 would be a real gem to find. I have quantities of blank paper tape and blank punched cards if anyone needs them, though I am always on the look out for more in different colours so I can easily recognise programs at a distance. Roger Holmes

17 years, 10 months

Good Composite->VGA converters for classic computers (& video games...)

by derschjo＠msu.edu

Anyone out there use a composite->VGA upscaler for their classic computing and/or gaming needs? I've been looking to shave a bit of space off my workbench and just use a single SVGA monitor instead of that and an old composite monitor. I picked up one of these: http://www.amazon.com/gp/product/B000XXZQWQ and while it works great for certain systems (the C64 and NES, for example) it gets really confused by the composite signal coming from other systems (like the Apple II and Sega Genesis) and is unusable with them. Anyone have any recommendations? Thanks, Josh

17 years, 10 months

Daystar Universal PowerCache & SE/30...

by derschjo＠msu.edu

Scored a nice find for 50 cents today, a 50Mhz 68030 Daystar "Universal PowerCache" accelerator card. From my research on the web this should be SE/30 compatible, but requires some manner of a PDS adapter which is essentially impossible to find. The card won't physically fit in the SE/30 due to the metal chassis getting in the way -- anyone know if this is the only reason the adapter is needed, or are there electrical differences as well? As my SE/30 is kind of a mongrel anyway I wouldn't mind hacking up the chassis a bit to allow the card to fit, but if the adapter is actually necessary I won't bother... Thanks, Josh

17 years, 10 months

One tonne 'Baby' marks its birth

by ray＠arachelian.com

http://news.bbc.co.uk/1/hi/technology/7465115.stm One tonne 'Baby' marks its birth By Jonathan Fildes Science and technology reporter, BBC News Baby project team The four remaining members of the Baby team will be honoured in Manchester Sixty years ago the "modern computer" was born in a lab in Manchester. The Small Scale Experimental Machine, or "Baby", was the first to contain memory which could store a program. The room-sized computer's ability to carry out different tasks - without having to be rebuilt - has led some to describe it as the "first modern PC". <snip>

17 years, 10 months

Ted - Historian George Dyson tells stories from the birth of the modern computer -- from its 16th-century origins to the hilarious notebooks of some early computer engineers.

by ray＠arachelian.com

http://www.ted.com/index.php/talks/view/id/278 Historian George Dyson tells stories from the birth of the modern computer -- from its 16th-century origins to the hilarious notebooks of some early computer engineers.

17 years, 10 months

sell/donate: Wang Professional Computer in Columbus Ohio

by tosteve＠yahoo.com

------------------------------------------------------------ This is not my system, please email Martha if interested. ------------------------------------------------------------ From: Martha Shaw <mshaw at columbusschoolforgirls.org> Subject: RE: selling a Wang Wordprocessor Date: Wednesday, June 18, 2008, 3:45 PM I have a Wang word processor from the 1980's. I would like to sell it or donate it (take a deduction) if I can. It's called the Wang Professional Computer in it's manual which is copyrighted 1985. This one was used for training when the person who owned it worked at home and trained others when she worked for Wang. It works and has a printer, as well as 10 printer wheels and 11 ribbons. Martha Shaw ------------------------------------------------------------ This is not my system, please email Martha if interested. ------------------------------------------------------------

17 years, 10 months

IBM Switch assembly

by cclist＠sydex.com

> Date: Fri, 20 Jun 2008 20:45:45 -0700 > From: jim s > not impossible it's off a 1620. have you searched photos of it? Not a 1620--the system used a much wider row of switches and indicators. Not a 1401 or 7090 match either, from my memory, but could be a 704 power switch assembly. Cheers, Chuck

17 years, 10 months

photo of IBM lab?

by hardware＠ees1s0.engr.ccny.cuny.edu

Hello. I ran across this photo: http://w140.com/kurt/ibmlab2.jpg Do you think it is an IBM lab? What are they working on? thanks, -kurt

17 years, 10 months

big bucks for a Tek computer on eBay

by aek＠bitsavers.org

> apparently 6800 based. O woe is me. 322$ + 90$ ~$400 isn't 'big bucks' The days of getting this stuff cheap are LONG gone. The original 4051 used a 6800, 4052s simulate a 6800 with 2901s and are MUCH faster. 'posthuman' buys up a lot, along with 'futuresources' and 'wehavedealt', I wonder who they are?

17 years, 10 months

Looking for AMD9511 datasheet

by ragooman＠comcast.net

Would someone have a datasheet for the AMD9511 ? This is a FPU coprocessor from '79 =Dan -- [ "go get 'em" ] [ Pittsburgh --- http://www2.applegate.org/~ragooman/ ]

17 years, 10 months

photo of IBM lab?

by aek＠bitsavers.org

> What are they working on? IBM 705

17 years, 10 months

NEC D7220AD datasheet wanted

by ajp166＠bellatlantic.net

> >Subject: Re: NEC D7220AD datasheet wanted > From: "Seth Morabito" <sethm at loomcom.com> > Date: Fri, 20 Jun 2008 10:26:59 -0700 > To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> > Cc: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org> > >On Fri, Jun 20, 2008 at 7:14 AM, maurice smulders ><maurice.smulders at gmail.com> wrote: >> Make sure you google for uPD7220 (that's the NEC prefix) >> >> Maurice >> > >That was my mistake -- I kept searching for NEC 7220 and NEC D7220, >without the 'uC'. Couldn't find anything. Yes it would muck up the works. The part was uPD7220. I have a few and likely apnotes and all as well. Allison >I have a copy of it now, thanks! > >-Seth

17 years, 10 months

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