Very Early (Stugart) Apple II Drive!

If you're part of the AppleFritters forum you may have seen that I put it up for sale, but if you're not and you're interested, please drive me an email! I'm planning to put it up on eBay later tonight if nobody here is interested :) SN 1718 http://imgur.com/a/Bt2UV -Andy

LMI Lambda?

If there is anyone out there who has access to or knows someone who has access to an LMI Lambda in any condition or configuration, please contact me.

Data General MTB Reference Sought

Does anyone have (a scan of) a manual that covers programming the MV-era MTB tape controller? I have a 1980 "Peripherals" manual (014-000632-01) from the "Programmer's Reference Series" which covers the MTA type, but it seems that the MTB behaves a bit differently and I am missing some

Re: PDP-11: BC11-A cable dress between cabinets

On Jan 25, 2017 2:19 AM, "Fritz Mueller" wrote: > > Hey folks, > > I've gotten to the part of a PDP-11/45 restore I’ve been working on where I need to run a Unibus cable between the CPU box in one rack and an RK11-C controller at the top of the next rack over. I'm a bit puzzled

Re: LMI Lambda?

http://www.computerhistory.org/collections/catalog/102668040 On 1/25/17 5:43 AM, Daniel Seagraves wrote: > If there is anyone out there who has access to or knows someone who has > access to an LMI Lambda in any condition or > configuration, please contact me. >

Re: IBM 7074 and then some: "Systems we love" conference

On Jan 24, 2017 7:57 PM, "Chuck Guzis" wrote: > The 7070 was very early (1958) and is probably the first (or close to > the first) IBM transistorized computer. The 7070 was announced in Sept. 1958, but did not ship until April 1960. The first IBM computing device to use

RE: IBM 7074 and then some: "Systems we love" conference

I dunno – there’s something about the sheep welcoming the 7070 that struck me funny. Sent from my Windows 10 phone From: Chuck Guzis Sent: Wednesday, January 25, 2017 4:01 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: IBM 7074 and then some: "Systems we love" conference

Re: Looking to read past EOT on DDS/DLT/LTO

On 1/25/2017 6:07 PM, Charles Anthony wrote: On Wed, Jan 25, 2017 at 3:04 PM, Chuck Guzis wrote: On 01/25/2017 02:16 PM, Eric Smith wrote: On Jan 25, 2017 12:24 PM, "Stan Sieler" wrote: We have a friend with a "tape" (DDS, DLT, or LTO ... don't know

Re: Looking to read past EOT on DDS/DLT/LTO

On 01/25/2017 04:06 PM, j...@cimmeri.com wrote: > Would it be possible to just physically cut the 1kb + EOT portion of > tape out, and then attempt to read from beginning? I suppose this > would depend on how the backup data is formatted on the tape (using > some kind of container format with

FW: 8085 Address Decoding

Hi folks, Apologies if this gets posted twice, I noticed I'd sent it from my non-cctalk address. A -- Adrian/Witchy Binary Dinosaurs creator/curator Www.binarydinosaurs.co.uk - the UK's biggest private home computer collection? -- Forwarded Message From: Adrian Graham

Re: IBM 7074 and then some: "Systems we love" conference

On 1/25/2017 9:54 AM, Ray Arachelian wrote: On 01/23/2017 02:00 PM, Steven Maresca wrote: Just wanted to share an excerpted story just sent to me by a colleague, regarding an IBM 7074 supplying data to Java middleware, ultimately feeding a modern webapp stack:

Re: Looking to read past EOT on DDS/DLT/LTO

Hi I've had the same problem some years back, with a DDS-3, IIRC I did some research, and the most reasonable outcome was that it was not possible by normal means, because some algorithm reading synchronisation data couldnt find out what was happening, so, the backup was ruined. /Nico

Re: IBM 7074 and then some: "Systems we love" conference

On 01/25/2017 01:37 PM, ben wrote: > What ever happened to computrons? Were computrons ever deployed in a real product? I was under the impression that they were stillborn. --Chuck

Re: Looking to read past EOT on DDS/DLT/LTO

On Jan 25, 2017 12:24 PM, "Stan Sieler" wrote: > We have a friend with a "tape" (DDS, DLT, or LTO ... don't know which yet) > to which was written a system backup. Thousands of files, with an EOF > between each file, and a double EOF + EOT at the end. > > The problem: > They

8085 Address Decoding

Evening folks, Could a stuck bit or floating pin cause this address sequence? 0.14226156250,'3896' (0x0F38) 00111001 0.14226293750,'3897' (0x0F39) 00111010 0.14226425000,'3898' (0x0F3A) 00111011 0.14226556250,'3899' (0x0F3B)

Re: 8085 Address Decoding

On 26/01/2017 10:17, Adrian Graham wrote: Evening folks, Could a stuck bit or floating pin cause this address sequence? 0.14226156250,'3896' (0x0F38) 00111001 0.14226293750,'3897' (0x0F39) 00111010 0.14226425000,'3898' (0x0F3A) 00111011

Re: LMI Lambda?

oh.. it is currently on exhibit, so getting access internally will be difficult On 1/25/17 8:15 AM, Al Kossow wrote: > http://www.computerhistory.org/collections/catalog/102668040 > > On 1/25/17 5:43 AM, Daniel Seagraves wrote: >> If there is anyone out there who has access to or knows someone

Re: IBM 7074 and then some: "Systems we love" conference

On 01/25/2017 12:19 AM, Chuck Guzis wrote: On 01/24/2017 10:01 PM, Jon Elson wrote: And, the 7074 was a serious computer, given the vintage. Either 4 or 6 us core cycle time was QUITE good in 1961 or so. 10 us instruction execution time was pretty decent. I find the whole period amazing.

Choosing a shipping carrier -

Sometimes you eat the bear and sometimes the bear eats you - http://abcnews.go.com/US/passenger-train-crashes-fedex-truck-shocking-video/story?id=45022454

Re: IBM 7074 and then some: "Systems we love" conference

On 01/23/2017 02:00 PM, Steven Maresca wrote: > Just wanted to share an excerpted story just sent to me by a colleague, > regarding an IBM 7074 supplying data to Java middleware, ultimately feeding > a modern webapp stack: > http://thenewstack.io/happens-use-java-1960-ibm-mainframe/ > > This comes

Re: Looking to read past EOT on DDS/DLT/LTO

On 01/25/2017 02:16 PM, Eric Smith wrote: > On Jan 25, 2017 12:24 PM, "Stan Sieler" wrote: >> We have a friend with a "tape" (DDS, DLT, or LTO ... don't know >> which yet) to which was written a system backup. Thousands of >> files, with an EOF between each file, and a double

Re: Looking to read past EOT on DDS/DLT/LTO

On Wed, Jan 25, 2017 at 3:04 PM, Chuck Guzis wrote: > On 01/25/2017 02:16 PM, Eric Smith wrote: > > On Jan 25, 2017 12:24 PM, "Stan Sieler" wrote: > >> We have a friend with a "tape" (DDS, DLT, or LTO ... don't know > >> which yet) to which was written a

Re: Looking to read past EOT on DDS/DLT/LTO

On Wed, 25 Jan 2017, Eric Smith wrote: > > The problem: > > They then accidentally overwrote the start of the tape yesterday > > with about 1 KB of data, plus EOT. > > I hope someone can prove me wrong, but I think that short of a major effort > to hack the drive firmware, the data is gone.

Re: IBM 7074 and then some: "Systems we love" conference

On 01/25/2017 02:07 PM, Eric Smith wrote: > The 7070 was announced in Sept. 1958, but did not ship until April > 1960. According to IBM's DPD Chronology for 1959: "On August 3, DPD introduces the IBM Datacenter -- facilities in which customers rent the use of IBM 7070 systems by the hour and

VCF event archive page

Several people asked me about archive pages for past Vintage Computer Festival events. Much of the information was lost during a rebuild of the former Festival owner's web site, however, much of the same information was also available at Archive.org. Tonight we posted about 50% of the basic

Fourth release of the HP 3000 Series III simulator

The fourth release of the HP 3000 Series III simulator is now available from the Computer History Simulation Project (SIMH) site: https://github.com/simh/simh This release adds the HP 32234A COBOL II Extended Instruction Set firmware, enabling execution of programs produced by the COBOL II

Re: Selling off my collection

Could you hold the IMSAI, ALTAIR and Apple Prototypes for me please? Would love to discuss price, can call you to discuss if you give me your cell :) -Andy On Thu, 26 Jan 2017 at 06:01, Sellam Ismail wrote: > I'm starting the long process of selling off my entire

Re: Selling off my collection

Whatever is happening for you to sell your entire collection, I just hope you (and your family) are ok! 2017-01-26 0:22 GMT-02:00 Sellam Ismail : > I'm starting the long process of selling off my entire collection. There's > a lot to go through. Some more details are

Re: Looking to read past EOT on DDS/DLT/LTO

> On Jan 25, 2017, at 1:24 PM, Stan Sieler wrote: > > Hi, > > We have a friend with a "tape" (DDS, DLT, or LTO ... don't know which yet) > to which was written a system backup. Thousands of files, with an EOF > between each file, and a double EOF + EOT at the end. > > The

Re: IBM 7074 and then some: "Systems we love" conference

On 01/25/2017 05:47 PM, Eric Smith wrote: > Based on the bios of the authors, I'm actually more inclined to > believe the book than annotation of a photo on the IBM web site. Computerhistory.org mentions that the 1959 date was part of other information written on the back of the photo.

7RS110 User's manual and tecnical specifications

I recently acquired a small box with 14 NIB MIPS 7RS110s. But is the User's manual anywhere to be found? Grazie Mille.

Selling off my collection

I'm starting the long process of selling off my entire collection. There's a lot to go through. Some more details are here: http://www.vcfed.org/forum/showthread.php?55964-Selling-Off-the-Collection And some photos are here: http://s350.photobucket.com/user/Sellam_Abraham/library/ Keep in

Re: IBM 7074 and then some: "Systems we love" conference

On Wed, Jan 25, 2017 at 4:00 PM, Chuck Guzis wrote: > So who you gonna believe--a photo taken in 1959 or some guy writing 27 > years later saying it didn't exist? Based on the bios of the authors, I'm actually more inclined to believe the book than annotation of a photo on

Re: Looking to read past EOT on DDS/DLT/LTO

- Original Message - From: "Chuck Guzis" To: "General Discussion: On-Topic and Off-Topic Posts" Sent: Wednesday, January 25, 2017 7:21 PM Subject: Re: Looking to read past EOT on DDS/DLT/LTO > On 01/25/2017 04:06 PM, j...@cimmeri.com wrote: >

Looking to read past EOT on DDS/DLT/LTO

Hi, We have a friend with a "tape" (DDS, DLT, or LTO ... don't know which yet) to which was written a system backup. Thousands of files, with an EOF between each file, and a double EOF + EOT at the end. The problem: They then accidentally overwrote the start of the tape yesterday with about 1

Re: IBM 7074 and then some: "Systems we love" conference

On 01/25/2017 09:39 AM, Jon Elson wrote: > Well, of course. If you look at the design of some of the last gasps > of the tube generation like the Bendix G15, you will see what > incredible hoops they had to jump through to make a viable product. > Or, look at SAGE, which filled an enormous

Re: Data General MTB Reference Sought

G'day Steve - AOS/VS OS tape drive base names are MTA, MTB, MTC, etc. and do not directly correspond to the assembler mnemonic name(s) - don't be confused by this difference. The AOS/VS 'MTA'-type tape drive is described on page IV-5. These correspond to the original DG model 4030/6020

Service Manual Direct 831, Direct 825 or Basic Four S/10

finally got one of the Basic Four S10. Does someone have a service manual for these or the Direct Inc. models ? The one i got was a little bit damaged due to shipping within Europe. Found at least one transistor and one cap that broke off the video monitor board. Will try to fix that next

Re: Looking to read past EOT on DDS/DLT/LTO

Hi Stan As a thought, a piece of magic mending tape? Dwight From: cctalk on behalf of Stan Sieler Sent: Wednesday, January 25, 2017 11:24:06 AM To: cctalk@classiccmp.org Subject: Looking to read past EOT on

Re: IBM 7074 and then some: "Systems we love" conference

On 1/25/2017 11:55 AM, Chuck Guzis wrote: On 01/25/2017 09:39 AM, Jon Elson wrote: Well, of course. If you look at the design of some of the last gasps of the tube generation like the Bendix G15, you will see what incredible hoops they had to jump through to make a viable product. Or, look at