Re: MIPS I-IV instruction set standards

Are you aware of “See MIPS Run” by Sweetman? That’s what I always used as a reference for the early MIPS stuff. TTFN - Guy > On Feb 28, 2017, at 3:16 AM, Eric Smith via cctalk > wrote: > > On Mon, Feb 27, 2017 at 11:59 PM, Angelo Papenhoff via cctalk < >

Re: eBay: PDP-11/70 backplane?

> On Mar 23, 2017, at 2:07 PM, Henk Gooijen via cctalk > wrote: > > AFAIK, the 11/70 backplane is about that size, but it consists of *two* > separate backplanes with lots of fragile wiring between the 2 halves. > Further, I am “missing” a few MOLEX connectors on the top

Re: PDP-11/20 in Iowa (x3)

Yes, the MEM11 is about 1/2 assembled at the moment (I just haven’t had the time to finish it…you know WORK gets in the way). TTFN - Guy > On Mar 27, 2017, at 3:46 PM, Ethan Dicks via cctalk > wrote: > > On Mon, Mar 27, 2017 at 6:35 PM, Steve Malikoff via cctalk >

Re: RTX-2000 processor PC/AT add-in card (any takers?)

> On Apr 10, 2017, at 11:18 PM, Lars Brinkhoff via cctalk > wrote: > > Chuck Guzis wrote: >> That is a bit of a surprise--in my experience it takes very little >> code to support Forth on any processor--that someone would build a >> dedicated chip for it is unusual. > >

Re: 2.11BSD on two RL02 drives? Probably not, but...

> On Aug 2, 2017, at 11:32 AM, Aaron Jackson via cctech > wrote: > > Hi all, > > I will soon be getting a PDP-11/73 with 1MB of RAM, an RLV12 and DEQNA > controllers. I already have two RL02 and packs (which need a clean), > with thanks to Dave Wade on this list. > >

Re: 2.11BSD on two RL02 drives? Probably not, but...

> On Aug 3, 2017, at 9:28 AM, Noel Chiappa via cctalk > wrote: > >> From: Guy Sotomayor Jr > >> Having several different Unibus board designs in various stages .. I can >> tell you that producing a *reliable* Unibus board is *not* going to be >> cheap. > > Why not?

Re: 2.11BSD on two RL02 drives? Probably not, but...

> On Aug 3, 2017, at 7:10 AM, Rick Bensene via cctalk > wrote: > > That said, my PDP 11 is Unibus, and Unibus SCSI controllers are darned > expen$ive. They’re desirable and not a lot around. So it’s not terribly surprising. Having several different Unibus board

Re: Whole IBM System/34 available in unknown condition

Usual question. Where is it? TTFN - Guy > On Jul 25, 2017, at 1:36 PM, Benjamin Huntsman via cctalk > wrote: > > Anyone on here want a whole System/34? > > > Not mine, but I have contact details. The scrapper wants $800 for it local > pick up. > > > Let me know

Re: RK05 head alignment -- how difficult?

> On Jul 23, 2017, at 10:12 PM, Fritz Mueller via cctalk > wrote: > > Hey folks: > > As some of you know, I've recently restored a PDP-11/45, RK11-C drive > controller, and an RK05 drive. I'm now at the point where I'm working to > recover and archive the contents of

Re: Model M case screws

> On Jul 1, 2017, at 11:12 PM, Tony Duell via cctalk > wrote: > > >> >> The quality of tools has declined. It used to be that Sears Roebuck >> "Craftsman" hand tools were among the best and were sold with an >> unconditional warranty. Not so any more. > > The best

Re: tape baking

> On Jul 6, 2017, at 3:39 PM, Mark J. Blair via cctalk > wrote: > > >> On Jul 6, 2017, at 3:34 PM, jim stephens via cctalk >> wrote: >> >> >> >> On 7/6/2017 10:59 AM, Chuck Guzis via cctalk wrote: >>> Go figure. Perhaps nobody owns a line

Re: 2.11BSD on two RL02 drives? Probably not, but...

> On Aug 4, 2017, at 1:27 PM, ben via cctalk wrote: > > On 8/4/2017 12:49 PM, Warner Losh via cctalk wrote: >> On Fri, Aug 4, 2017 at 12:36 PM, Al Kossow via cctalk >> wrote: >>> >>> >>> On 8/4/17 11:14 AM, Warner Losh via cctalk wrote: most

Re: Sperry UTS 40 on Ebay - Statesboro, Georgia

> On Aug 1, 2017, at 11:04 AM, Al Kossow via cctalk > wrote: > > > > On 8/1/17 10:49 AM, Noel Chiappa via cctalk wrote: > >> Any guesses as to what's going on? > > sellers not getting the prices they wanted. Isn’t that the point of having a reserve or setting the

Re: 2.11BSD on two RL02 drives? Probably not, but...

> On Aug 4, 2017, at 1:14 AM, Christian Corti via cctalk > wrote: > > On Thu, 3 Aug 2017, emanuel stiebler wrote: >> On 2017-08-03 11:12, Al Kossow via cctalk wrote: >>> It would be nice, though if someone just finished a MSCP controller with a >>> CF or SD on it. >>

Re: FTGH Large amount of DEC/Misc Classic computer hardware

> On May 10, 2017, at 12:20 PM, Noel Chiappa via cctalk > wrote: > >> From: Guy Sotomayor Jr > We need to move our business and I have about a ton of classic cimputer junk in the SFBA that need to go or get scrapped: > Symbolics 3645? (from Guy Sotomayer

Re: RL02 to image file

> On Jun 2, 2017, at 1:16 AM, Christian Corti via cctalk > wrote: > > On Thu, 1 Jun 2017, Jay Jaeger wrote: >> On 6/1/2017 12:12 PM, Ethan Dicks wrote: >>> On Thu, Jun 1, 2017 at 7:59 AM, Jay Jaeger via cctalk >>> wrote: I can. I use a DR11

Re: Anybody has Control Data (CDC) disk packs for 841 and 844 disk drives to spare with?

> On Jun 4, 2017, at 12:02 PM, Chuck Guzis via cctalk > wrote: > > On 06/04/2017 11:47 AM, Al Kossow via cctalk wrote: >> >> >> On 6/4/17 3:35 AM, ANDY HOLT via cctalk wrote: >> >>> I would think it "not too difficult" to build a modern controller >> >> The

Re: Serial keyboards

> On Jun 6, 2017, at 11:51 PM, Eric Smith <space...@gmail.com> wrote: > > On Tue, Jun 6, 2017 at 3:48 PM, Guy Sotomayor Jr via cctalk > <cctalk@classiccmp.org <mailto:cctalk@classiccmp.org>> wrote: > Yes, I’ve been dealing with the morons who strip the keyboa

Re: Serial keyboards

> On Jun 6, 2017, at 2:46 PM, Anthony DeStefano via cctalk > wrote: > > > >> On Jun 6, 2017, at 4:40 PM, dwight via cctalk wrote: >> >> If you look on the ebay for a dolch ethernet sniffer, you'll see >> >> many with no keyboard. >> >> Why

IBM 4331 Mainframe

Just to let folks know that I finally moved the IBM 4331 Mainframe this past weekend from where it was currently stored to my shop. Pictures are here: https://www.flickr.com/gp/150223282@N04/NrX91K As can be seen in the pictures, it filled a

Re: IBM 4331 Mainframe

> On May 1, 2017, at 10:49 AM, Bill Gunshannon > wrote: > > > Just hope you don't have a head crash. Had one when I was at Ft. > Ben Harrison (a long time ago, when the 4341 was just going into > production. We had one of the first!) and it sounded like the

Re: IBM 4331 Mainframe

From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Guy >> Sotomayor Jr via cctalk >> Sent: 01 May 2017 05:39 >> To: General Discussion: On-Topic and Off-Topic Posts >> <cctalk@classiccmp.org> >> Subject: IBM 4331 Mainframe >> >> Just to let folk

Re: FTGH Large amount of DEC/Misc Classic computer hardware

I stopped by and picked up some stuff from Peter today. There’s a lot of stuff but I was only prepared to take a few items (I ended up taking a couple of tek ‘scopes too). I didn’t have time to sort through everything that was available but there’s a lot! He did mention that he has to be out

Re: IBM 4331 Mainframe 3 phase converter

> On May 4, 2017, at 8:04 AM, jim stephens via cctalk <cctalk@classiccmp.org> > wrote: > > > > On 5/4/2017 7:36 AM, Guy Sotomayor Jr via cctalk wrote: >> Does anyone know how to convert KVa to 208v 3-phase currents and/or HP? >> IBM’s docs all specify

Re: IBM 4331 Mainframe 3 phase converter

> On May 4, 2017, at 8:59 AM, Jon Elson <el...@pico-systems.com> wrote: > > On 05/04/2017 10:36 AM, Guy Sotomayor Jr via cctalk wrote: >>> >> OK, that’s not helping. Here’s what I have (from IBM site planning docs >> GC22-7064-10 and GC22-7069-2): >>

Re: IBM 4331 Mainframe 3 phase converter

Does anyone know how to convert KVa to 208v 3-phase currents and/or HP? IBM’s docs all specify power in KVa and most of the 3 phase converters (other than what Bob posted) seem to specify HP. If I’m going to spend serious coin on a phase converter (I think I found it online for ~$3k…ouch!), I

Re: cctalk Digest, Vol 39, Issue 15

> On Sep 15, 2017, at 11:52 AM, Fred via cctalk wrote: > > On Fri, 15 Sep 2017, cctalk-requ...@classiccmp.org wrote: > > >> Date: Thu, 14 Sep 2017 18:40:10 -0700 >> From: Ian Finder >> Subject: WTB: IBM 7060 aka MP3000 >> >> I'm looking for a

Re: The origin of the phrases ATA and IDE [WAS:RE: formatting MFM drives on a IBM PC]

> On Oct 5, 2017, at 2:53 AM, Christian Corti via cctalk > wrote: > > On Wed, 4 Oct 2017, Guy Sotomayor Jr wrote: >> Also, the early desktop PS/2 (model 50 and such) had the controller >> integrated on the drive and those were Maxtor as I recall. The PS/2 shipped >>

Re: The origin of the phrases ATA and IDE [WAS:RE: formatting MFM drives on a IBM PC]

> On Oct 5, 2017, at 11:26 AM, Paul Berger via cctalk <cctalk@classiccmp.org> > wrote: > > > > On 2017-10-05 12:57 PM, Guy Sotomayor Jr via cctalk wrote: >>> On Oct 5, 2017, at 2:53 AM, Christian Corti via cctalk >>> <cctalk@classiccmp.org> w

Re: Bridge Communication Unibus Ethernet board?

> On Aug 30, 2017, at 9:18 AM, Al Kossow via cctalk > wrote: > > Also, I'm interested in archiving any surviving documentation for the first > generation Ethernet > stuff that I don't have up on bitsavers like Bridge and Ungerman-Bass. I have > some Interlan and

Re: RIP Jerry Pournelle, the first author to write a novel on a computer Earl...

> On Sep 10, 2017, at 3:53 PM, Fred Cisin via cctalk > wrote: > >>> What word-processor programs existed prior to micros? >> WPS-8, of course. Wang had word processors in that same era. Then there >> is the MT/ST which I think is older still. And if you define it

Re: WTB 3270 terminal

Cool! Mine are all older (MP3000, R390, 4331). I have a 3174-61 (with ethernet). I haven’t quite brought myself to getting a 3174-1 (there are several on ebay for not unreasonable prices). There are some 3178’s and 3179’s on ebay (at least the last time I looked). You *may* have to find a

Re: formatting MFM drives on a IBM PC

> On Sep 26, 2017, at 10:20 PM, Chuck Guzis via cctalk > wrote: > > On 09/26/2017 09:53 PM, Mike Stein via cctalk wrote: > >> Ah yes, the interesting 11MB IMI 7710. Cromemco also used them in their >> Z-2H; I still have one somewhere, not a bad drive when it worked ;-)

Re: formatting MFM drives on a IBM PC

> On Sep 28, 2017, at 9:04 AM, Jon Elson via cctalk > wrote: > > On 09/28/2017 10:31 AM, Chuck Guzis via cctalk wrote: >> And even the sector size on recent drives is fictitious. Larger drives use >> 4K sectors but "translate" them to the 512 byte standard. > So, for

Re: formatting MFM drives on a IBM PC

> On Sep 29, 2017, at 10:35 AM, Jules Richardson via cctalk > wrote: > > On 09/29/2017 11:20 AM, Jon Elson via cctalk wrote: >> I can only imagine a real AT would be even less likely to handle a drive >> over about 40 MB. > > I think the limit was normally 512MB in the

Re: WTB 3270 terminal

You realize that a CUT terminal (327x, 317x, etc) all require an “establishment controller” in order to work? Something like a 3174-1, 3174-11 or 3174-6x. Also 327x terminals are *hard* to find. Partly because the keyboard collectors (may they be forever damned) take the keyboards and scrap

Re: packing and moving ...

Here’s what I did (I was moving my stuff myself but it should work with professionals too). I usually packed “smaller” items (terminals count as “small”) in bubble wrap and/or foam and then put it in a box. I then stacked boxes onto a pallet and strapped and “shrink wrapped” the pallets. I

Re: Solaris on PPC?

> On Aug 30, 2017, at 7:59 PM, jim stephens via cctalk <cctalk@classiccmp.org> > wrote: > > > > On 8/30/2017 7:31 PM, Guy Sotomayor Jr via cctalk wrote: >>> On Aug 30, 2017, at 7:14 PM, Zane Healy via cctalk <cctalk@classiccmp.org> >>> wrot

Re: Solaris on PPC?

> On Aug 30, 2017, at 7:14 PM, Zane Healy via cctalk > wrote: > > > > Steve Jobs would have been at NeXT at that time, he didn’t come back to Apple > until ’97. > > Nearly 25 years later, my memory is pretty vague, however, around ’93 at the > FOSE trade show in

Re: The origin of the phrases ATA and IDE [WAS:RE: formatting MFM drives on a IBM PC]

> On Oct 4, 2017, at 3:42 PM, Chuck Guzis via cctalk > wrote: > > On 10/04/2017 03:10 PM, Fred Cisin via cctalk wrote: > > Why on earth would WD have anything to do with it? They supplied the > controller, but not the drives. I used to have an early Maxtor ~50MB >

Re: eBay: MEMOREX 3693-2 & 3690-2 Disc Drive Mainframe IBM 3370-2 VINTAGE

> On Dec 15, 2017, at 4:04 AM, P Gebhardt via cctalk > wrote: > > > > >> eBay: MEMOREX 3693-2 & 3690-2 Disc Drive Mainframe IBM 3370-2 VINTAGE >> >> No connection to the seller, but they mention it will be scrapped if no >> takers. $150 Buy it now. >>

Re: eBay: MEMOREX 3693-2 & 3690-2 Disc Drive Mainframe IBM 3370-2 VINTAGE

To let folks now, I’ve acquired the drives and am currently making arrangement for one of the local collectors to pick them up if I’m unable to and store them until I’m able to get them to my place. So they’ve been saved and I’m looking forward to being able to attach them to my 4331. TTFN -

Re: IBM 3270 controller emulation

It might be worthwhile to look at the source for hercules (370, 390, z/series) emulator since that includes support for 3270 terminals through tn3270. It’s pretty good since I can use actual 327x CUT terminals connected to a 3174 controller which connects to hercules emulating the mainframe.

Re: Restoring a PC Server 500 P/390

> On May 15, 2018, at 1:29 PM, Dave Wade via cctalk > wrote: > > > That’s, in effect, what I did. Whilst there were Microchannel IDE Controllers > I have never seen one. There are no IDE interfaces on the "Planar" so every > thing must be on the MCA bus. > So I

Re: Modifying microcode

> On May 30, 2018, at 6:51 AM, Noel Chiappa via cctalk > wrote: > >> From: Kyle Owen > >> I do have an 11/45, though... so with this modification, I suppose one >> could have some fun: > > That's for the -11/40 - very different machine, one couldn't use the same > technique on the /45; the

Re: Is This A Shill?

> On May 2, 2018, at 9:50 AM, Alan Perry via cctalk > wrote: > > > >> On May 2, 2018, at 8:58 AM, Cory Heisterkamp via cctalk >> wrote: >> [snip] >> Chuck makes a good point about the Make-Offer feature, and it should be >> noted that

Re: non-PC Floppy imaging

> On Jan 6, 2018, at 2:42 AM, Dave Wade via cctalk > wrote: > > > >> -Original Message- >> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Jon Elson >> via cctalk >> Sent: 06 January 2018 02:50 >> To: Guy Sotomayor ;

Re: non-PC Floppy imaging

Thanks Lyle. My biggest impediment at the moment is not actually having a PC that has a floppy drive. :-o The other is time…work has been crazy as indicated by Jensen’s CES keynote tonight where the chip that I’ve been working on was just announced! yea! 9,000,000,000 transistors! TTFN - Guy

Re: Power plugs and cables for the IBM 3420

Those cables came with my 4331 system. I’ll go and dig them out and maybe there will be some sort of part number. At worst I’ll post some pictures. You might also want to look up the various IBM docs on the 3420 and 3803. They should specify those cables. I also have all the docs in an IBM

Re: GT-40 etc.

As I understand it, the power for the DACs actually comes from the monitor (VR12/4/7) and thus you can’t use any monitor without some additional circuitry to provide the power to the DACs. TTFN - Guy > On Jan 20, 2018, at 5:32 PM, Paul Anderson via cctalk > wrote: > >

Re: GT-40 etc.

> On Jan 20, 2018, at 8:07 PM, Ethan Dicks wrote: > > On Sat, Jan 20, 2018 at 8:58 PM, Guy Sotomayor Jr wrote: >> As I understand it, the power for the DACs actually comes from the monitor >> (VR12/4/7) and >> thus you can’t use any monitor without

Re: GT-40 etc.

> On Jan 21, 2018, at 11:47 AM, Al Kossow via cctalk > wrote: > > HP1311A is what was used in Galaxy Game > https://www.hpmuseum.net/display_item.php?hw=732 > > The actual GG controller is a microcoded 2903 bitslice that sits on the Unibus > Supposed to be similar to

Re: HP 9816 CP/M-68K

> On Feb 12, 2018, at 3:00 PM, Chuck Guzis via cctalk > wrote: > > > Most don't believe me what I say that the floppy disc dates from 1946. And the fax was invented in 1842 (yes *before* the telephone)! TTFN - Guy

Re: LMI Lambda Lispmachine Keyboard aka Space Cadet Keyboad

I haven’t seen an emulator for an LMI, but here’s a link to a CADR emulator that was the precursor to both Symbolics and LMI so it might be worthwhile to try out. TTFN - Guy > On Feb 17, 2018, at 7:29 AM, Marc Holz via cctalk > wrote: > > Hello, > > > > I have the

Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)

> On Feb 21, 2018, at 12:19 PM, Rich Alderson via cctalk > wrote: > > From: Guy Sotomayor Jr > Sent: Wednesday, February 21, 2018 11:24 AM > >>> On Feb 21, 2018, at 10:59 AM, Paul Koning via cctalk >>> wrote: > >>> Typically you'd emulate the

Re: Writing emulators (was Re: VCF PNW 2018: Pictures!)

> On Feb 21, 2018, at 10:59 AM, Paul Koning via cctalk > wrote: > > > Caching doesn't change user-visible functionality, so I can't imagine wanting > to emulate that. The same goes for certain error handling. I've seen an > emulator that included support for bad

Re: RK05 spindle pulleys - trade 50Hz vs 60Hz?

> On Jul 25, 2018, at 11:17 AM, Tony Duell via cctalk > wrote: > > On Wed, Jul 25, 2018 at 5:48 PM, Eric Smith via cctalk > wrote: > >> I'm not sure about motors, but 60 Hz power transformers can't handle as >> high a maximum power (or current) when used for 50 Hz. The maximum power >> has

Re: BASIC (Was: Reading HP2000 tapes

I should also mention that for the IBM S/23, once the BASIC program is entered, the original source is discarded and only the tokenized code remains (comments are retained as-is). The LIST command runs a de-tokenizer and reconstructs the original source (well close to it anyway). TTFN - Guy

Re: VT100's

My biggest complaint with DEC terminals (and clones) that came after the VT100 (such as the VT220/VT320/etc) is that the terminals are nice and small but the keyboards are *huge* (almost twice the width of the terminal itself). I like having a keyboard that matches the size of the terminal and

Re: Oddball Terminals (Was: Re: VT100's)

> On Sep 7, 2018, at 4:35 PM, Warner Losh wrote: > > > > On Fri, Sep 7, 2018 at 5:33 PM Guy Sotomayor Jr via cctalk > mailto:cctalk@classiccmp.org>> wrote: > I also looked at the keyboards on my Symbolics machines, and where I’d like > to have the c

Re: Oddball Terminals (Was: Re: VT100's)

> On Sep 7, 2018, at 4:15 PM, Frank McConnell via cctalk > wrote: > > On Sep 7, 2018, at 12:00, Al Kossow via cctalk wrote: >> interesting.. the vt71t has inverted-T cursor keys > > And CAPS LOCK in the home row to the left of the A key. The VT220 made it > w-i-d-e. Can we now fix the

Re: HP 5061-6565 scsi loopback plug

Yea, it would have to be more than just a terminator as it would have to reflect back some of the control signals to the “ack” equivalents otherwise the controller would just see a bus with no devices on it. Presumably, the controller also has a “loopback” mode so that all the signals

Re: Sun3 valuations?

> On Jan 22, 2018, at 4:08 PM, Noel Chiappa via cctalk > wrote: > >> From: Grant Taylor > >> What makes the copies of papers printed on them special? > > Well, the Dover was the first device (that I know of) that could print _very_ > high-quality graphical/multi-font

Re: Sun3 valuations?

> On Jan 22, 2018, at 5:03 PM, Noel Chiappa via cctalk > wrote: > > >> From: Guy Sotomayor Jr > >> The XGP printed on roll paper. It was a laser type process > > Plain paper? Well, my memory of it being thermal paper could easily be wrong; > it's been a _long_ time,

Re: GT-40 etc.

> On Jan 21, 2018, at 10:13 AM, Al Kossow via cctalk > wrote: > > > > On 1/21/18 10:12 AM, Al Kossow via cctalk wrote: >> >> >> On 1/21/18 10:04 AM, Paul Koning via cctalk wrote: >> >>> Remember that the GT40 is a vector drawing display, not a raster scan. So >>>

Re: XT/370 microcode

> On Mar 12, 2018, at 9:57 AM, Eric Smith via cctalk > wrote: > > On Mon, Mar 12, 2018 at 10:54 AM, emanuel stiebler via cctalk < > cctalk@classiccmp.org> wrote: > >> On 2018-03-12 15:49, Eric Smith via cctalk wrote: >>> As the most obvious example of the impedance

Re: cctalk Digest, Vol 42, Issue 14

> On Mar 14, 2018, at 2:03 PM, Fred via cctalk wrote: > > >> Date: Tue, 13 Mar 2018 14:28:11 -0600 >> From: Grant Taylor >> Subject: Re: cctalk Digest, Vol 42, Issue 13 >> Message-ID: >>

Re: Int 13h buffer 64k boundaries

> On Apr 19, 2018, at 8:55 PM, Chuck Guzis via cctalk > wrote: > > On 04/19/2018 07:56 PM, Guy Sotomayor Jr wrote: > >> As to why IBM entered the PC market, the rumor was (at least at the time >> within IBM) was that T.J. Watson, Jr. was at an employee’s house and saw

Re: Int 13h buffer 64k boundaries

> On Apr 19, 2018, at 4:16 PM, Chuck Guzis via cctalk > wrote: > > On 04/19/2018 12:14 PM, Fred Cisin via cctalk wrote: > >> I have no difficulty admitting that I didn't, and don't, have >> Chuck's level of experience and knowledge. My entire venture into >>

Re: Microsoft-Paul Allen

Some corrections related to Mach and Apple. TTFN - Guy > On Oct 22, 2018, at 2:40 PM, Jim Manley via cctalk > wrote: > > > > BTW, MacOS X is based on Mach, the version of Unix that was designed for > multiple, closely-coupled processors, and it, too, uses X as a basis for > its GUI. No.

Re: Microsoft-Paul Allen

> On Oct 23, 2018, at 11:12 AM, Jim Manley wrote: > > On Mon, Oct 22, 2018 at 3:59 PM Guy Sotomayor Jr > wrote: > An (optional) X server (and clients) can be added to the OS (I use them all > the time) but > is not part of the base install ... > > Wrong. Apple

Re: 70's computers

> On Oct 24, 2018, at 11:22 AM, ben via cctalk wrote: > > On 10/24/2018 11:57 AM, Al Kossow via cctalk wrote: >> On 10/24/18 10:53 AM, ben via cctalk wrote: >>> I have no idea what is in a modern home computer, but I suspect >>> it still follows the same design of the IBM PC. Single CPU >>>

Re: Microsoft-Paul Allen

> On Oct 23, 2018, at 3:30 PM, Jim Manley via cctalk > wrote: > > On Tue, Oct 23, 2018 at 12:55 PM Guy Sotomayor Jr wrote: > >> On Mon, Oct 22, 2018 at 3:59 PM Guy Sotomayor Jr >> wrote: >> >>> An (optional) X server (and clients) can be added to the OS (I use them >>> all the time) but

Re: does a reverse-engineering EDA tool exist?

> On Oct 25, 2018, at 9:02 AM, Jon Elson via cctalk > wrote: > > On 10/25/2018 12:44 AM, Chuck Guzis via cctalk wrote: >> On 10/24/18 8:06 PM, Jon Elson via cctalk wrote: >> >>> Hmmm, you COULD actually use a schematic tool to do this! Maybe create >>> the components to look like DIPs. I

Re: does a reverse-engineering EDA tool exist?

> On Oct 25, 2018, at 10:05 AM, Al Kossow via cctalk > wrote: > > > > On 10/25/18 9:48 AM, Al Kossow via cctalk wrote: >> >> >> On 10/25/18 9:18 AM, Guy Sotomayor Jr via cctalk wrote: >>> Now that I think about it, a flying probe may

Re: IBM Xstation 140?

If I recall correctly the Xstation 120 (the first of them) used an 8086 (might have been an 80186). The big issue was that you couldn’t do anything with it because what was in ROM/FLASH was only smart enough to be able to TFTP the rest of the microcode (not terribly useful if you don’t have

Re: 70's computers

> On Oct 23, 2018, at 4:08 PM, Noel Chiappa via cctalk > wrote: > >> From: Ben Bfranchuk > >> I just can't find a clean simple design yet. ... >> The PDP 11 is nice machine, but I am looking for simpler designs >> where 16K words is a valid memory size for a OS and small single user >>

Re: i860: Re: modern stuff

> On Nov 4, 2018, at 9:37 AM, Todd Goodman via cctalk > wrote: > > Yes, a company I was working for OEMed what because IBM's X25Net software and > it was ported to their RTIC i960 cards from our own homegrown i960 cards. > > The IBM group we worked with was in La Gaude France but we heard

Re: Unisys keyboards

> On Sep 2, 2018, at 2:49 PM, Andrew Luke Nesbit via cctalk > wrote: > > Dear Paul, > > On 02/09/2018 08:12, Paul Anderson via cctalk wrote: >> Two Unisys PCK105-SKB look unused, but one is yellowed. >> >> Sorry, I forgot to describe them as keyboards. > > I realized the beauty of

Re: The Ultimate Apollo Guidance Computer Talk

> On Sep 19, 2018, at 1:24 AM, CuriousMarc via cctalk > wrote: > > >> On Sep 18, 2018, at 8:44 PM, Steve Malikoff via cctalk >> wrote: >> >> Haven't watched this video yet but am keen to do so as "ultimate" is a bold >> claim to make. >> > > This an outstanding presentation. The bold

Re: ISO 70's and 80's coax and twinax terminal docs/brochures

> On Sep 19, 2018, at 9:35 AM, Al Kossow via cctalk > wrote: > > > > On 9/19/18 9:03 AM, Alexandre Souza wrote: >> time for a ps2-to-3274-terminal-adapter? > > yes, or at least get all the 25-pin parallel keyboard protocols documented > before a keyboard in thousands of dollars instead of

Re: ISO 70's and 80's coax and twinax terminal docs/brochures

I just wanted to send this privately. I have a number of 3278/79 keyboards that I could *loan* you (as I have exactly the number of keyboards to match terminals) for documenting. The problem is getting together. I was just down in Santa Clara a couple of weeks ago for work and I probably

Re: Advice requested on proper disposal of Seagate ST3000DM001 disk drives

If I wanted to reduce a drive to slag, I’d just put it in a propane furnace (actually the drive would go into the crucible). They generate up to 2700F (~1500C) and they’re for melting gold, silver, copper, etc. So I suspect it would do the job. ;-) Plus you’d a nice molten mess that you can

Re: Motorola M88K books & user manuals (looking for)

> On Jan 1, 2019, at 2:35 PM, Carlo Pisani via cctalk > wrote: > >> I was never a fan of RISC architecture as does not fit the standard high >> level language model. Everybody wants a 1 pass compiler, thus the RISC >> model. If you are doing your own RISC model, you might consider a model >>

Re: Motorola M88K books & user manuals (looking for)

> On Jan 1, 2019, at 2:00 PM, ben via cctalk wrote: > > On 1/1/2019 8:58 AM, Carlo Pisani via cctalk wrote: >> hi >> on DTB we are designing a RISC-ish CPU, code name "Arise-v2"(1). >> We are using the MIPS R2K and the RISC-V as the reference. >> In the end, it will be implemented in HDL ->

Re: Microcode, which is a no-go for modern designs

> On Jan 2, 2019, at 10:22 AM, Chuck Guzis via cctalk > wrote: > > On 1/2/19 8:02 AM, Jon Elson via cctalk wrote: > >> Random logic instruction decode was a REAL issue in about 1960 - 1965, >> when computers were built with discrete transistors. The IBM 7092, for >> instance, had 55,000

Re: off topic - capatob - saratov2 computer Russsian pdp8? HELP

I think it’s also telling that the IETF uses the term octet in all of the specifications to refer to 8-bit sized data. As “byte” (from older machines) could be anything and is thus somewhat ambiguous. It *may* have been the IBM 360 that started the trend of Byte == 8-bits as the 360’s memory

Re: off topic - capatob - saratov2 computer Russsian pdp8

> On Jan 6, 2019, at 6:10 PM, Jon Elson via cctalk > wrote: > > On 01/06/2019 01:29 PM, Bob Smith via cctalk wrote: >> Sorry, thanks for playing but >> Actually half of a WORD is a BYTE, whatever the numerical length is. >> Ready for this,half of a BYTE is a NIBBLE. > Well, no. On 32-bit

Re: Core memory emulator using non volatile ram.

> On Dec 16, 2018, at 10:40 PM, Chuck Guzis via cctalk > wrote: > > On 12/16/18 11:21 AM, Paul Koning wrote: > >> If you simply want non-volatile memory, the obvious answer is SRAM with >> battery backup and a small FPGA to do the interfacing. > > I proposed nvRAM - CMOS SRAM backed by

Re: Core memory emulator using non volatile ram.

> On Dec 17, 2018, at 10:52 AM, Noel Chiappa via cctalk > wrote: > >> From: Paul Koning > >> For that matter, core memory details such as destructive read weren't >> visible to the CPU > > Umm, not quite. If you'd said 'core memory details such as destructive read > weren't visible to the

Re: Core memory emulator using non volatile ram.

> On Dec 15, 2018, at 12:51 PM, Jon Elson via cctalk > wrote: > > On 12/15/2018 02:45 PM, Anders Nelson via cctalk wrote: >> Serial flash has an endurance between 10K-100K writes per cell so I think >> that would break down quickly. Wear-leveling on a serial device would be >> very slow... >>

Re: Core memory emulator using non volatile ram.

> On Dec 15, 2018, at 1:18 PM, Warner Losh via cctalk > wrote: > > On Sat, Dec 15, 2018, 1:51 PM Jon Elson via cctalk wrote: > >> On 12/15/2018 02:45 PM, Anders Nelson via cctalk wrote: >>> Serial flash has an endurance between 10K-100K writes per cell so I think >>> that would break down

Re: Core memory emulator using non volatile ram.

> On Dec 15, 2018, at 7:09 PM, allison via cctech wrote: > > On 12/15/2018 01:01 PM, Guy Sotomayor Jr via cctech wrote: >> FRAM or MRAM. I make extensive use of them in my projects. >> >> Everspin has a few (all SMT and 3.3v). As I recall they run ~$20/ea for 4Mb >> (512K x 8 or 256K x

Re: Core memory emulator using non volatile ram.

> On Dec 16, 2018, at 8:21 PM, allison via cctech wrote: > > On 12/15/2018 03:51 PM, Jon Elson via cctech wrote: >> On 12/15/2018 02:45 PM, Anders Nelson via cctalk wrote: >>> Serial flash has an endurance between 10K-100K writes per cell so I >>> think >>> that would break down quickly.

Re: Core memory emulator using non volatile ram.

FRAM or MRAM. I make extensive use of them in my projects. Everspin has a few (all SMT and 3.3v). As I recall they run ~$20/ea for 4Mb (512K x 8 or 256K x 16). TTFN - Guy > On Dec 15, 2018, at 1:22 AM, Rod G8DGR via cctalk > wrote: > > I have an idea to produce an MM-8 clone using RAM

Re: PDP-8/e

I just use ‘cat’. Seems to work fine. ;-) TTFN - Guy > On Dec 7, 2018, at 4:57 AM, Pete Turnbull via cctalk > wrote: > > On 07/12/2018 09:59, Rod G8DGR via cctalk wrote: > >> OK now I need a little help. >> Does anybody know of a terminal emulation program that will simulate the >> reader

Re: Bogus "account hacked" message

I’ve been getting those messages for a few months now and nothing bad has happened yet. ;-) TTFN - Guy > On Jan 8, 2019, at 12:03 PM, Peter Coghlan via cctalk > wrote: > > > About two hours ago, I received an email to the address I only use for > cctech/cctalk. > > It claimed my email

Re: OT? Upper limits of FSB

Some architectures (I’m thinking of the latest Intel CPUs) have a small loop cache whose aim is to keep a loop entirely within that cache. That cache operates at the full speed of the instruction fetch/execute (actually I think it keeps the decoded uOps) cycles (e.g. you can’t go faster). L1

Re: IBM in TX

> On Jan 11, 2019, at 9:58 AM, William Donzelli via cctalk > wrote: > >> Looks like the "Mainframe" is an IBM Series/1 which is not a Mainframe, and >> I would say has limited appeal to collectors as there are few resources out >> there as the software is all fully licenced so its had to

Re: I finally got to see a LMI Lambda in real life...

Without the console doing much with the CADR is going to be tough. Not having the disk isn’t too terrible as the basic contents (uCode and system code) are available. There’s even an emulator for the CADR though I don’t have the link handy at the moment. Ping me if you have trouble finding

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