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any thoughts where this might be?

by aek＠bitsavers.org

http://i.ebayimg.com/images/g/rgkAAOSw-0xYfg9p/s-l1600.jpg from www.ebay.com/itm/351959392585

8 years, 3 months

What's the rarest or most unusual computer-related item

by mark＠markesystems.com

From: "Jay West" <jwest at classiccmp.org> > -------------------- > Was it possible to configure an Access system with a mix of a 21MX and > 2100? > (I'm not challenging the assertion; it just never occurred to me...) > -------------------- > According to the documentation - specifically "no". Both processors must > be > the same type. > However, after digging in to it year ago, I see no reason that it > shouldn't > work and others on the list said they were fairly certain that it did > work. Thanks for the info! From: Glen Slick <glen.slick at gmail.com> > The L-Series 2103L and the A-Series A400, A600, A600+, A700, A900, > A990 were all called HP 1000 systems. They maintained software > compatibility with previous generation HP 1000 computers, although the > I/O interfaces used by the L-Series and A-Series were incompatible > with the previous generation HP 1000 computers. > I have a couple of A900 boxes that I need to get RTE-A running on them > someday. I used the A-Series quite a bit in the mid-80's. By that time, the operating system of choice had moved on from RTE-6 to RTE-A, which I quite liked in general. For control applications, it had several nice features for priority control, inter-process communication, etc. It also handled a fully hierarchical file system, which was still not a given at that time. However, I wasn't too pleased with the "full screen editor"; it worked by sending a couple of screen-fulls of text to the terminal (must be an HP26xx), then reading it back off the screen after you'd done any editing locally. It worked better than one might think, but one of the first things I did was write a character-at-a-time editor that used the WordStar / Turbo Pascal key mappings (in Fortran-77, BTW). With the A600, and at the end the A400, you could get a whole multi-user computer system, including a smallish disk drive (I think up to 60 MB) all in one 6U rack mount chassis, which I thought was pretty neat at the time. I had one, including two terminals, 7912 disk/tape drive, printer, and all the documentation and system generation media (720k floppy disks!) - I got it all for free when a customer upgraded to PCs, but gave it all away to Goodwill when I got married. On Mon, Jan 16, 2017 at 07:39:00PM -0500, Michael Thompson wrote: > I have two Sun 386i systems. It has an Intel 386 processor and runs SunOS. > Not exactly a big seller for Sun. I met some of the designers at the > Vintage > Computer Festival East 2.0 in Burlington, MA. I had one of those also, courtesy of a friend with a two-digit employee number at Sun. I really enjoyed it, being able to run multiple copies of DOS on a Unix machine in a windowed environment (this was well (this was at least 5 years before Windows 3.0 came out). Apparently the sales force actively *didn't* sell the unit, presumably because the price - and therefore commission - was too low. Gave that one away, too... ~~ Mark Moulding

8 years, 3 months

What's the rarest or most unusual computer-related item

by mark＠markesystems.com

From: Al Kossow <aek at bitsavers.org> > On 1/15/17 10:02 AM, Jay West wrote: >> I'd have to say my HP-2000 systems that are running are the rarest that >> I'm aware of. >> So I fairly strongly suspect that my running HP-2000's are the only ones >> left, anywhere. > > probably true. > http://www.computerhistory.org/collections/catalog/102682887 > is probably an Access system, I never looked to see if it has the > interprocessor comm link Was it possible to configure an Access system with a mix of a 21MX and 2100? (I'm not challenging the assertion; it just never occurred to me...) Actually, the thing I'm calling a 21MX is listed in the components list as a "1000". Perhaps this implies that it (or they) was running one of the RTE operating systems. ~~ Mark Moulding

8 years, 3 months

Soldapullt original vs III

by AppleCorey＠optonline.net

So I think I need to upgrade to a real Soldapullt instead of the RadioShack special. Is the slimline III model as good as the original bulky one? I don't mind the xtra pressure to push down the plunger on the original, I'm concerned with the effectiveness and ability to get in tight places my Hakko FR gun can't fit easily or when it's not worth changing tips for a single different component. Thanks, Cheers, Corey corey cohen u??o? ???o?

8 years, 3 months

What's the rarest or most unusual computer-related item do you own?

by r3trohub＠gmail.com

Hi Everyone! I thought this would be an interesting question to ask around - What's the rarest or most unusual computer-related item do you own? For me, personally, I have a Altair 8800! Looking forward to hearing your answers >_Andy

8 years, 3 months

Close encounters of the CADR kind

by jnc＠mercury.lcs.mit.edu

> From: Lars Brinkhoff > http://i0.wp.com/futurewavewebdevelopment.com/wp/wp-content/uploads/2016/10… That might actually be the CONS Machine (effectively a prototype CADR); Greenblatt looks awfully young in that picture! Also, I don't recall him being super-involved in the CADR work. (You might ask him which it is!) The CONS CPU backplane is apparently now at the CHM: http://www.computerhistory.org/collections/catalog/102647223 My memory of the CONS machine is that, like the Chess Machine, it was a special purpose CPU hung off the AI PDP-10. (Or maybe the Chess Machine was attached to MC? I forget.) However, while that may have been its state early on, in reviewing some CONS documents I discovered that it was eventually given a keyboard and display, although it did remain hooked up to the PDP-10. The CONS machine is described in 3 AI Lab publications: Working Paper #79, Working Paper #80 ("CONS", by Tom Knight), and Memo #444 ("LISP Machine Progress Report"), The first is available here: http://www.textfiles.com/bitsavers/pdf/mit/cadr/Greenblatt-The_LISP_Machine… but it's just an architecture document. Memo #444 has an extensive "Current Status - August 1977" section, which gives more info about the CONS machine as built. Noel

8 years, 3 months

What's the rarest or most unusual computer-related item do you own?

by michael.99.thompson＠gmail.com

I have two Sun 386i systems. It has an Intel 386 processor and runs SunOS. Not exactly a big seller for Sun. I met some of the designers at the Vintage Computer Festival East 2.0 in Burlington, MA. -- Michael Thompson

8 years, 3 months

What's the rarest or most unusual computer-related item do you own? [Tek 4132]

by seefriek＠gmail.com

From: allison <ajp166 at verizon.net> > >The 32016 was not clocked very fast nor did it have any pipelines to >speak of. True. And lots of interesting bugs; some show-stoppers in early steppings. >If the 32016 had a second generation, some tweaks and faster process it >might have had hope but like 68k and Z8000 it was good idea but late. It had 2 additional generations of general purpose procs (32332 & 32532) and a number of embedded iterations (ns32gc, ns32fx). But, yeah, too late relative to to i8086. KJ

8 years, 3 months

Macintosh Plus: 31 years old this coming Monday

by cmhanson＠eschatologist.net

I met up with some friends at a coffee shop to get some data off a hard drive that was given to one of them with an old Mac Plus. During the course of this, we looked some things up, and learned that the Mac Plus was released on January 16, 1986: Thirty one years ago, as of this coming Monday. Maybe I?ll take some time out on Monday to finally fit mine with the replacement analog board that I?ve acquired, so I can enjoy that beautiful bluish-white phosphor glow once again. -- Chris

8 years, 3 months

What's the rarest or most unusual computer-related item do you own? [Tek 4132]

by seefriek＠gmail.com

From: Al Kossow <aek at bitsavers.org> > > That reminds me I need to dig out the Genix sources I have. > I'd really like to see that, if it ever came to light. KJ

8 years, 3 months

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