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Re: bitsavers is showing down here

On 1/17/20 7:36 PM, jim stephens via cctalk wrote: > > Not responding from the bitsavers.org domain. > > I'm guessing if it's down, the list might be ailing, too. > > thanks > Jim Ok, this is a test... How the hell is it that I unsubed this address months ago and all of a sudden I'm getting

Re: First Internet message and ...

On 11/24/19 5:07 PM, Murray McCullough via cctalk wrote: > The first Internet message was sent 60 yrs. ago on Nov. 21 between SRI and > UCLA. It was one-to-many, or more accurate one-to-one, but the world today > is many-to-many though cctalk runs through a moderator. The Internet > democratizes

Re: Who changed the gravitational constant (Dec pdp11 stuff)

On 11/22/19 2:36 PM, Al Kossow via cctalk wrote: > > > On 11/22/19 11:16 AM, Chris Zach via cctalk wrote: >> That >> could be a problem if I want to re-load Cobol 81 onto this RSTS/E system. > > weren't RL01s usable in an RL02? > > No for RL. You, maybe thinking RX01/02 interchangeability.

Re: several items for sale and a note.

I can't it's in the way. Space and all are the reasons. You can get the pin out for both ends from the manuals and the prints. If you get it wrong things just don't work but no breakage. On 11/22/19 3:42 PM, Henk Gooijen wrote: >   > >   > > *Van: *allison via cctech

several items for sale and a note.

Note: we have some entity scraping the list(how is not determined). If I post I find that I get spam for about a week after until I post again. Most of the SPAM is scamware. It maybe someone with a virus on their system or a account that is for a bogus user. Take from that what you may. Now

Re: Got it: RD54 formatting write protect solved

I Use a spare MicroVAX-2000, the system roms ahve good diags and formatter for floppies and HD. Allison On 11/20/19 1:14 AM, Jacob Ritorto via cctalk wrote: > Nice going! > > Related story: > I had probs formatting a maxtor 11xx (not an actual xt-2190 but really close) > as an rd54 due to

Re: RX01 wants

On 11/17/19 2:17 PM, Fritz Mueller via cctalk wrote: > Hi Paul, > >> I think you mean RX11. > > Ah, yes — I typo’d that, thanks! > >> Isn't the BC05L-15 folded up in the case? Or did they put a short one to the >> back of the box? I can't remember now. > > I’ll have a look to remind myself

Re: Quantum 2080 and 540 service manuals

On 11/16/19 12:48 AM, Chuck Guzis via cctech wrote: > On 11/15/19 2:21 PM, dwight via cctalk wrote: >> Heads getting stuck on the ramp? >> Maybe it has warn a groove in the plastic. It could be the bearings on the >> head assembly as well. >> Dwight > > Dunno--I only fire the thing up about once

Re: Quantum 2080 and 540 service manuals

On 11/15/19 1:29 PM, Chuck Guzis via cctalk wrote: > On 11/14/19 1:38 PM, Al Kossow via cctalk wrote: >> These showed up on eBay, I'd been looking for them for over twenty years >> >> http://bitsavers.org/pdf/quantum/Q500/81-50466A_Q500_Technical_Reference_Manual_Sep1984.pdf >>

Re: TI994/A Power Supply

On 11/15/19 1:29 PM, Fred Cisin via cctalk wrote: > On Fri, 15 Nov 2019, Jules Richardson via cctalk wrote: >> OK, the cord "fits", but having looked at it now I'm not at all >> convinced, either. The two-pin socket is actually the same as the >> four-pin socket on the other two machines, but with

Re: TI994/A Power Supply

On 11/15/19 7:46 AM, Jules Richardson via cctalk wrote: > On 11/14/19 3:02 PM, Jules Richardson via cctalk wrote: >>> I'm about 95% certain that it does NOT take line voltage in. >> >> Hmm, I'll see if I can find a moment to take it apart later. It's >> interesting that it's a boxed unit with a

Re: Question about modems

On 11/13/19 4:16 PM, Grant Taylor via cctalk wrote: > On 11/13/19 1:31 PM, Fred Cisin via cctalk wrote: >> But, stuff like commands to the modem didn't need much of that, and >> needed to be able to communicate in spite of wrong parameters.  It >> made sense for a modem to recognize a command,

Re: Question about modems

On 11/13/19 9:17 AM, geneb via cctalk wrote: > On Wed, 13 Nov 2019, Jim Brain via cctalk wrote: > >> Did Hayes modem really do that?  I thought most later modems self >> detected parity and speed and thus would have switched both the comm >> on the serial port and the data sent to the other side

Re: TI994/A Power Supply

On 11/11/19 2:12 AM, Eric Smith via cctalk wrote: > On Sat, Nov 9, 2019 at 1:46 PM Jules Richardson via cctalk < > cctalk@classiccmp.org> wrote: > >> I've got another /4A however which has a 2-pin plug on the back, and that >> one appears to just take plain ol' 110VAC line voltage and the PSU is

Re: Andromeda disk controller diag/format disk found

On 11/5/19 10:08 PM, Jon Elson via cctalk wrote: > On 11/05/2019 12:11 PM, Al Kossow via cctalk wrote: >> it would be good to get it archived. >> I can do it if no one else volunteers >> >> > OK, you're on.  It is a 5.25 " disk in RX50 format, RT-11 file > structure, and bootable on both PDP-11

Re: 50 yrs. ago today

On 10/30/19 10:18 AM, Liam Proven via cctalk wrote: > On Wed, 30 Oct 2019 at 03:34, allison via cctalk > wrote: > >> >> The whole story of what was going on was far more complex and interesting. > > Conceded. > >> Funny thing was DECnet was in 1983 the

Re: 50 yrs. ago today

On 10/29/19 8:50 PM, Jecel Assumpcao Jr. via cctalk wrote: > We celebrated the 40th anniversary of the Internet less than 2 years > ago: > >> https://computerhistory.org/blog/born-in-a-van-happy-40th-birthday-to-the-internet/ > > The ARPAnet was a WAN (wide area network) and not an Internet, but

Re: 50 yrs. ago today

On 10/29/19 8:21 PM, Fred Cisin via cctalk wrote: >>> The first "internet" packet was certainly a significant event. > > On Tue, 29 Oct 2019, Paul Koning wrote: >> Indeed.  So "remote communication between heterogeneous computers" >> would probably be a good description. > > not so sure, . . . I

Re: Introduction and need help bringing some pdp11's back

On 10/29/19 8:37 PM, Chris Zach via cctalk wrote: >> I assume your building up a Qbus PDP-11. > > Yup. They're easier to get going for starters and since I got rid of the > 11/44 the fastest system I've got. I like them for the many flavors of CPU and and possible configurations. I have a few

Re: Introduction and need help bringing some pdp11's back

On 10/29/19 2:13 PM, Pete Turnbull via cctalk wrote: > On 29/10/2019 16:28, Chris Zach via cctalk wrote: >> The real problem is I'm trying to put an RQDX3 in there instead of the >> ESDI controller so I can boot off RX50's. And I have no idea which way >> all the various ribbon cables are supposed

Re: Nuke Redmond!

Its been a while but same game and I'm not a player. I just don't run windows. I jumped that ship back in 06 when burned on NT. Since then its Linux. If you play in the swamp of M$ then your run all the risks and costs. Its just not good enough to be worth the pain. Any new machine I might

Re: fix? Repair? or leave alone? http://rcade.camden.rutgers.edu/2020symposium.html

On 9/27/19 2:07 PM, Chuck Guzis via cctalk wrote: > On 9/27/19 9:22 AM, Brent Hilpert via cctalk wrote: >> On 2019-Sep-27, at 6:47 AM, Paul Koning via cctalk wrote: >>> I make it a habit to assume that every email which contains just a >>> link but no explanation is a scam with a forged sender

Re: phone systems, old and less-old

On 9/19/19 12:56 PM, Kevin Monceaux via cctalk wrote: > On Wed, Sep 18, 2019 at 09:05:07PM -0700, Chuck Guzis via cctalk wrote: > >> 25 pairs, where >> >> White Red Black Yellow Violet for each "bank" and within each bank >> Blue Orange Green Brown Gray > > From what I've heard and read, where

Re: Vulnerabilities (Was: [Simh] Fwd: VAX + Spectre

On 9/17/19 3:08 PM, Fred Cisin via cctalk wrote: > On Tue, 17 Sep 2019, Paul Koning via cctalk wrote: >> I could easily imagine a computer science exam question "Describe in >> one paragraph the specific design error that enabled the Meltdown >> attack". > > I used to have some related questions

Re: [Simh] Fwd: VAX + Spectre

On 9/17/19 1:49 PM, Warner Losh via cctalk wrote: > On Tue, Sep 17, 2019, 6:40 PM Paul Koning via cctalk > wrote: > >> Yes, I understand that a number of ISAs are vulnerable. The original >> paper by Kocher clearly mentions both x86 and ARM. >> >> The reason I forwwarded the question is that

Re: RL02s available

On 8/22/19 12:46 PM, William Donzelli via cctalk wrote: > I have a pair of RL02 drives available, and can bring them to VCFmw in > about three weeks. Pretty cheap. Untested. > > Contact me off list. > > -- > Will > Where are they now? Allison

Re: GW-DEC-1: A New DEC Prototyping Board

On 8/16/19 5:46 PM, Brent Hilpert via cctalk wrote: > On 2019-Aug-16, at 11:56 AM, systems_glitch via cctalk wrote: >> On Fri, Aug 16, 2019 at 2:53 PM Paul Koning wrote: >>> On Aug 16, 2019, at 2:43 PM, systems_glitch via cctalk < I'm sure DEC wouldn't have bothered with hard gold

Re: Ill NLS MS-230 ---manual!

On 7/29/19 10:30 PM, Jim Brain via cctalk wrote: > On 7/29/2019 9:24 PM, allison via cctalk wrote: >> >> Since you replaced the batteries did you check the fuse? > Yep, good. >> Also the 4066s > Hmm, all mine are soldered in.  Do you suggest I desolder and che

Re: Ill NLS MS-230

On 7/30/19 2:58 PM, Brent Hilpert via cctalk wrote: > On 2019-Jul-29, at 6:34 PM, Jim Brain via cctalk wrote: >> I have an ill NLS MS-230 Miniscope. Is there anyone on list that might be >> interested in getting it running for me? I'm willing pay for the privilege. >> I'd like to see the unit

Re: Ill NLS MS-230

On 7/29/19 10:30 PM, Jim Brain via cctalk wrote: > On 7/29/2019 9:24 PM, allison via cctalk wrote: >> >> Since you replaced the batteries did you check the fuse? > Yep, good. THe batteries are charged? (about 6.6V or more full charge) >> Also the 4066s > Hmm, all mi

Re: Ill NLS MS-230

On 7/29/19 9:34 PM, Jim Brain via cctalk wrote: > I have an ill NLS MS-230 Miniscope.  Is there anyone on list that might > be interested in getting it running for me?  I'm willing pay for the > privilege.  I'd like to see the unit working, but I have no experience > with analog scopes, and I'd

Re: Scanning question (Is destruction of old tech docs a moral crime?)

On 07/22/2019 10:55 AM, Guy Dunphy via cctalk wrote: > At 10:41 AM 21/07/2019 -0600, you wrote: > On Sun, Jul 21, 2019, 4:16 AM Joseph S. Barrera III via cctalk > wrote: >> I'd suggest that in 2019 when bits are cheap and high-quality scanners >> nearly as cheap, "crappy quality digital image"

Re: Anyone have any info on the obscure MX11 PDP-11 option?

On 06/24/2019 04:38 PM, Noel Chiappa via cctalk wrote: > MX11 > Memory Extension Option If it is not KT-11 then its not memory address extension. MX-11 and variants are memory boards or systems. BEst I can do it never appears in my Qbus world so it may be a board/module level reference to the

Re: Wanting to get my first classic computer

On 06/19/2019 10:31 AM, Noel Chiappa via cctalk wrote: > > From: Ray Jewhurst > > > I would really like to get my own classic computer but I don't know > > where to begin. > > Two questions you need to sort out in your mind, to decide, are i) do you > want something with a bit-mapped

Re: M7264 Troubleshooting

On 06/08/2019 10:37 PM, Noel Chiappa via cctech wrote: > > From: Allison > > > ODT for the two systems are very different. .. KDF-11 the ODT is part > > of the higher level code. The larger cards (11/23 and 23+) boot to > > resident (ep)rom. > > Ah, no. (Well, the KDF11 CPU's can

Re: M7264 Troubleshooting

On 06/08/2019 07:08 PM, Noel Chiappa via cctalk wrote: > A follow-up to close out something: > > > OK, now a picture of the bus with no console card: > > > http://ana-3.lcs.mit.edu/~jnc/tech/pdp11/jpg/BSYN-BDAL_NoMem.jpg > [Note: image re-named, to correctly say what it's showing] >

Re: M7264 Troubleshooting

On 06/08/2019 12:07 PM, Mister PDP via cctalk wrote: > On Fri, Jun 7, 2019 at 7:35 PM Noel Chiappa wrote: > >> PS: Might be useful to check that the DLV11-J works; having a stock of >> known-good >> boards you can swap in is such a tool for QBUS debugging. > > > Tried that one out too, and it

Re: Modems and external dialers.

Re: Modems and external dialers. > > On 6/4/19 8:30 PM, allison via cctalk wrote: >> Keep in mins the hardware for auto dial required some for of micro and >> that was a post 1974 thing for the most part. > > Why did it require a micro? Could the host not perform the functio

Re: Modems and external dialers.

On 06/04/2019 09:45 PM, Grant Taylor via cctalk wrote: > Does anyone have any experience working with modems that didn't include > internal / auto dialers? > Yes, Novation cat, Hays, and a few others. Dial the phone and put it in the cradle or flip a switch. Most of the 110/300boaud bel 101 and

Re: 11/93 Rebuild - SCSI HD now boots RT11

On 05/31/2019 03:27 PM, Rod Smallwood via cctalk wrote: > > On 31/05/2019 19:40, allison via cctalk wrote: >> On 05/31/2019 02:04 PM, Rod Smallwood via cctalk wrote: >>> Hi >>> >>> Well I now have a bootable SCSI drive on my 11/93. Its not RSTS/E

Re: 11/93 Rebuild - SCSI HD now boots RT11

On 05/31/2019 02:04 PM, Rod Smallwood via cctalk wrote: > Hi > >     Well I now have a bootable SCSI drive on my 11/93. Its not RSTS/E > (yet) but it is RT 11 and reliable. > > Its a bit baseline but it runs. > > So next up was to see if we could get the RQDX3 to co-exist with the > SCSI

Re: M7264 Troubleshooting

On 05/29/2019 07:17 AM, Noel Chiappa via cctech wrote: > > From: Josh Dersch > > > how is the backplane in the H11 currently configured? (i.e. what boards > > are in what slots?) Could the issue here be something as simple as a > > break in the qbus due to a misplaced board? > >

Re: Possible PUTR bug?

My Solution is easier, least for me. I have a few Z80 CP/M machines with 765A in it and if it can't read it its likely due to being hard sectored or M2FM. I has 3.6, 5.25 and 8" and the 5.25 are Teac FD55gfh which are dual speed and can do all modes. With my own software and utilities it does

Re: How were 32-bit minis built in the 70s/80?

On 05/11/2019 09:30 PM, ben via cctalk wrote: > On 5/11/2019 6:28 PM, allison via cctalk wrote: > >> Not all were 74181 based, Thats an early 1972 part and but 1975 it was >> already getting old though useful as it evolved to 74S and 74F series. >> The 82s100

Re: How were 32-bit minis built in the 70s/80?

On 05/11/2019 07:14 PM, Warren Toomey via cctalk wrote: > I'm building my own 8-bit CPU from TTL chips, and this caused me to think: > how were 32-bit minis built in the late 70s and early 80s? In particular, > how was the ALU built? I know about the 74181 4-bit ALU, and I know (from > reading A

Re: RT-11 doesn't recognize my 3.5" floppy

On 05/07/2019 11:15 AM, Douglas Taylor via cctalk wrote: > Very interesting , now that you got it to work, what can you use it for? > Will it be an exchange media with PUTR? > > Doug > > On 5/6/2019 6:20 PM, Charles via cctalk wrote: >> I have installed an RQDX3 and the M9058 distribution board in

Re: Excessive amount of time in interrupt stack mode

On 04/30/2019 02:02 PM, John Klos via cctalk wrote: >> The system is mostly idle, RAM is mostly free (there's 32mb), >> there is almost no paging, but the CPU is spending upwards of 70% of the >> time in the interrupt stack mode. > > If I had to guess, I'd say the most likely culprit is ethernet.

Re: Greetings

On 04/29/2019 11:37 AM, Jon Elson wrote: > On 04/29/2019 06:47 AM, allison via cctech wrote: >> On 04/28/2019 09:28 PM, Grant Taylor via cctech wrote: >>> On 4/28/19 6:27 PM, Ray Jewhurst wrote: I already have a Hobbyist License.  I am just interested in experimenting with different OSes

Re: Greetings

On 04/29/2019 09:41 AM, Paul Koning wrote: > >> On Apr 29, 2019, at 7:47 AM, allison via cctech >> wrote: >> >> On 04/28/2019 09:28 PM, Grant Taylor via cctech wrote: >>> On 4/28/19 6:27 PM, Ray Jewhurst wrote: I already have a Hobbyist License. I am just interested in experimenting

Re: Greetings

On 04/28/2019 09:28 PM, Grant Taylor via cctech wrote: > On 4/28/19 6:27 PM, Ray Jewhurst wrote: >> I already have a Hobbyist License.  I am just interested in >> experimenting with different OSes and different versions of OSes. > > ACK > > I don't know what VAX hardware VMS 1.5 supported, what

Re: What do to with an Internet-connected PDP-11?

On 04/29/2019 03:20 AM, ben via cctalk wrote: > On 4/28/2019 11:34 PM, Cameron Kaiser via cctalk wrote: >>> Maybe it would be possible to get a text only browser running? >> >> I think Gopher would be a better fit, personally. That's easy to write, >> parse and display. >> > That might be true,

Re: Televideo 925 character rom dump

On 04/24/2019 08:47 PM, Al Kossow via cctalk wrote: > > On 4/24/19 5:46 PM, allison via cctalk wrote: > >> The 8049 is readable just like the 8048 save for 2k device.  I worked >> for NEC back then and had access to intel parts too. > is that true for "HC" parts o

Re: Televideo 925 character rom dump

On 04/24/2019 07:55 PM, Guy Dunphy via cctalk wrote: > At 08:14 AM 24/04/2019 -0700, you wrote: >> >> On 4/24/19 5:39 AM, Guy Dunphy wrote: >> >>> The keyboard controller is an 8049. Firmware not readable. >> 8049s aren't protected. they are 2k versions of the 8048 >> and can be read as 8749s > I

Re: PDP-11/83 w/FPU?

On 04/18/2019 04:19 PM, Noel Chiappa via cctalk wrote: > > From: Allison > > > Experience is that an 11/23 or 23+ will run V6 as mine does. > > What changes did you make to get it to run? (I assume the stock binary > wouldn't run.) > > Noel The hardest part was was getting it on a

Re: PDP-11/83 w/FPU?

On 04/18/2019 10:56 AM, Noel Chiappa via cctalk wrote: > > From: W2HX > > > i have a few CPUs available to me, a 11/23+, an 11/73 and I also have > > available to me an 11/83 > > I would like to try to run as many different OS's as may interest me, > > including some unixes as

Re: Adding floppy drives to my PDP-11?

On 04/13/2019 06:07 PM, Charles via cctalk wrote: > I have a PDP-11/23+ with two RL02's in a corporate cabinet but no > floppy drives. Also an RXV21 (M8029) card. > > My PDP-8/A has RX01 drives, and I was hoping just to run the cable > over to the -11 when I wanted to use floppies on it. > But

Re: The story of... PDP-1

On 04/01/2019 08:34 PM, Paul Koning via cctalk wrote: > Nice. The bit about the PDP-1 at the skydiving world championship (in > Orange, MA) is still a well known item in the history of skydiving. > > paul Orange MA airport is still an active skydiving site. I used to fly there regularly

Re: Refillable spray can

On 03/24/2019 02:39 PM, Chuck Guzis via cctalk wrote: > On 3/24/19 11:32 AM, Chuck Guzis via cctalk wrote: > >> So this? >> >> https://www.amazon.com/EWK-Aluminum-Pneumatic-Refillable-Compressed/dp/B00JKED4MS >> >> Just be sure to use a dryer on your compressor output. Compressed air >> can hold

Re: Thinking about PDP11 PC05 Emulation

On 03/11/2019 02:11 PM, Jay Jaeger via cctech wrote: > I have several PDP-11's in my collection (among other things), and not > enough PC05 tape readers (or enough room) to go around. But most if not > all of my machines have M7810 PC11 interfaces, and I have one I could > move from machine to

Re: Pioneers of computing

On 03/11/2019 04:49 AM, Brent Hilpert via cctalk wrote: > On 2019-Mar-10, at 3:59 PM, Will Cooke via cctalk wrote: >>> On 3/10/2019 3:18 PM, Murray McCullough via cctalk wrote: Back in 1965 Jack Kilby, Jerry Merryman and James Van Tassel at texas Instruments created an integrated circuit

Re: 11/70 - original or 570 model more desirable?

> On Wed, Jan 30, 2019 at 9:49 PM Bill Degnan via cctech < > cct...@classiccmp.org> wrote: > >> Random question >> would you prefer having, if you had to pick only one, the original PDP >> 11/70 or the newer "blue cabinets" PDP 11/70, assuming both were complete >> configurations with racks of

Re: PDP-11 ID page, a few images needed

On 01/24/2019 10:38 AM, Ethan Dicks wrote: > On Wed, Jan 23, 2019 at 8:41 PM Allison Parent via cctalk > wrote: >> On Jan 23, 2019, at 8:43 PM, Paul Koning via cctalk >> wrote: >>> On Jan 23, 2019, at 5:37 PM, Noel Chiappa via cctalk >>> wrote: >>> >>>

Re: PDP-11 Memory

On 01/12/2019 05:03 PM, Bill Gunshannon via cctalk wrote: > On 1/12/19 4:30 PM, allison via cctalk wrote: >> On 01/12/2019 04:14 PM, Bill Gunshannon via cctalk wrote: >>> On 1/12/19 2:25 PM, allison via cctalk wrote: >>>> On 01/12/2019 12:29 PM, Pete Turnbull via cct

Re: PDP-11 Memory

On 01/12/2019 04:14 PM, Bill Gunshannon via cctalk wrote: > On 1/12/19 2:25 PM, allison via cctalk wrote: >> On 01/12/2019 12:29 PM, Pete Turnbull via cctalk wrote: >>> On 12/01/2019 01:24, Zane Healy via cctalk wrote: >>> >>>> I’m pretty sure you cou

Re: PDP-11 Memory

On 01/12/2019 12:29 PM, Pete Turnbull via cctalk wrote: > On 12/01/2019 01:24, Zane Healy via cctalk wrote: > >> I’m pretty sure you could get the /23+, /53, /73, /83, and /93 in >> either a BA23 or a BA123.  I have an actual badged BA23 pedestal for >> my /23+. > > I'm fairly certain all

Re: PDP-11 Memory

On 01/12/2019 12:36 PM, Bill Gunshannon via cctalk wrote: > On 1/12/19 12:24 PM, Pete Turnbull via cctalk wrote: >> On 11/01/2019 23:58, Ethan Dicks via cctalk wrote: >>> On Fri, Jan 11, 2019 at 3:51 PM Bill Gunshannon via cctalk >>> wrote: Mine are all BA23.  Wasn't the BA123 for the

Re: PDP-11 Memory

On 01/11/2019 02:32 PM, Noel Chiappa via cctalk wrote: > > From: Allison Parent > > > Most Probable cause is interrupt grant is broken. > > The only -11 that complains if the grant chain is broken that I know of is > the /34 (maybe the /04 too). I certainly have a QBUS chassis right next

Re: Bogus "account hacked" message

On 01/08/2019 04:29 PM, Grant Taylor via cctalk wrote: > On 01/08/2019 02:09 PM, allison via cctalk wrote: >> Its actually funny.  The password given is three yahoo (groups) hacks >> ago (about 10 years) but the email address used was a public one way >> reflector (

Re: Bogus "account hacked" message

On 01/08/2019 03:41 PM, Grant Taylor via cctalk wrote: > On 01/08/2019 01:25 PM, John Rollins via cctalk wrote: >> That they found an address used only for a certain mailing list makes >> it more interesting. Doing a quick Google search it looks like the >> list archives can be searched through,

Re: so far off topic - capatob - saratov2 computer Russsian pdp8?

On 01/07/2019 07:25 PM, ben via cctalk wrote: > On 1/7/2019 8:20 AM, allison via cctalk wrote: > snip... >> made though more likely 74F, AS, or LS variant and of course CMOS 74ACT >> (and cmos friends) as I just bought a bunch.  Dip is getting harder to >> get but >

Re: so far off topic - capatob - saratov2 computer Russsian pdp8?

On 01/07/2019 09:51 AM, Peter Corlett via cctalk wrote: > On Sun, Jan 06, 2019 at 02:54:08PM -0700, ben via cctalk wrote: >> On 1/6/2019 12:24 PM, allison via cctalk wrote: >>> The small beauty of being there...   FYI back then (1972) a 7400 was about >>> 25 cents and

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

On 01/06/2019 01:54 PM, William Donzelli via cctalk wrote: >> And then the PDP-11 put the nail in that coffin (and in 1980, there were more >> PDP-11's, world-wide, than any other kind of computer). > I bet the guys at Zilog might have something to talk to you about. > > -- > Will And Intel!  8008

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

On 01/06/2019 02:08 PM, Grant Taylor via cctalk wrote: > On 1/6/19 11:25 AM, Guy Sotomayor Jr via cctalk wrote: >> 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

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

On 01/06/2019 01:19 PM, Noel Chiappa via cctalk wrote: > > From: Grant Taylor > > > Is "byte" the correct term for 6-bits? I thought a "byte" had always > > been 8-bits. > > I don't claim wide familiary with architectural jargon from the early days, > but the PDP-10 at least (I don't

Re: music dec tapes? (paper)

On 01/03/2019 11:15 PM, Kyle Owen wrote: > On Thu, Jan 3, 2019, 17:48 allison wrote: > >> I don't think this album has been forgotten; I have a copy, and I >> know others with copies, too. It seems as though "Unplayed by >> Human Hands" (both

Re: music dec tapes? (paper)

On 01/03/2019 05:22 PM, Kyle Owen wrote: > On Thu, Jan 3, 2019 at 3:29 PM allison via cctech > mailto:cct...@classiccmp.org>> wrote: > > Those were likely with a PDP12 or LAB-8 with DAC board.  The code > actually is a roughly > digital version of tones in 10 or 12 bit form by writing

Re: music dec tapes? (paper)

On 01/03/2019 09:03 AM, Bill Degnan via cctech wrote: > I have tapes with labels > > 8-152a 8 Music Coding Program Symbolic #1 > 8-152 8 Music Coding Program Symbolic #2 > 8-152 Teddy Bear's Picnic Symbolic > 8-152a Penny Lane Symbolic > 8-152 Joy to the World Symbolic > 8-152 Your Mother

Re: Origin of 'Straight 8' name

On 12/21/2018 01:10 PM, Al Kossow via cctech wrote: > > On 12/21/18 10:03 AM, Al Kossow via cctalk wrote: > >> "Straight-8" seems to be a fairly modern name coming from collectors >> >> I never heard it called that before then. > Anyone feel like doing a alt.sys.pdp-8 search for it by date? > > I

Re: Origin of 'Straight 8' name

On 12/21/2018 10:10 AM, Noel Chiappa via cctalk wrote: > Does anyone know where the 'Straight 8' name for the first PDP-8 model came > from? Obviously, it's probably a play on the car engine configuration name, > but how did the connection get made? Thanks - I hope! > > Noel > ssrsly? It was

Re: Which DEC machine made use of th pre Flip-Chip board?

On 12/21/2018 09:33 AM, Noel Chiappa via cctalk wrote: > > through (I think) the PDP-7; at least, this PDP-7 internals image > > .. seems to show System Modules at the top, and FLIP CHIPs at the > > bottom. > > After groveling through the 'PDP-7 Maintainence Manual' (F-77A), this seems

Re: flashx20 - Floppy and screen for the Epson HX-20

On 12/16/2018 11:39 PM, Will Cooke via cctalk wrote: > > > > > > On December 16, 2018 at 11:14 PM allison via cctalk > wrote: >>> On Sun, 16 Dec 2018, Norbert Kehrer via cctalk wrote: >>>> I have not tested it, but I suppose, that also the PX-8 and

Re: flashx20 - Floppy and screen for the Epson HX-20

On 12/16/2018 11:56 PM, Fred Cisin via cctalk wrote: >> On December 16, 2018 at 11:14 PM allison via cctalk >> wrote: >>> >>>> On Sun, 16 Dec 2018, Norbert Kehrer via cctalk wrote: >>>>> I have not tested it, but I suppose, that also the PX-8

Re: Core memory emulator using non volatile ram.

On 12/15/2018 09:32 PM, Charles Anthony via cctech wrote: > On Sat, Dec 15, 2018 at 6:15 PM Rod G8DGR via cctalk > wrote: > >> All very interesting.. 1201 alarm while I deal will all of the information >> Rod >> >> > 1202 coming up... > > I don't know specifically about the various memory types

Re: Core memory emulator using non volatile ram.

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. Wear-leveling on a serial device would be >> very slow... >> >> > If you

Re: Core memory emulator using non volatile ram.

On 12/16/2018 10:07 PM, ben via cctech wrote: > On 12/16/2018 8:00 PM, allison via cctech wrote: > >> In the end, current generation CMOS ram is the easy out, battery is >> small, cost is small,  and >> produces much less of the heat that is killer to systems.   The only >> reason to do that is

Re: flashx20 - Floppy and screen for the Epson HX-20

On 12/16/2018 10:59 PM, Fred Cisin via cctalk wrote: > On Sun, 16 Dec 2018, Norbert Kehrer via cctalk wrote: >> I have not tested it, but I suppose, that also the PX-8 and PX-4 used >> the protocol, >> because the protocol specification defines the following device numbers: >> - HX-20: 0x20

Re: Core memory emulator using non volatile ram.

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 16). > > TTFN - Guy > >> On Dec 15, 2018, at 1:22 AM, Rod G8DGR via

Re: PET peve thing... Editors

On 12/13/2018 12:05 AM, Sean Conner via cctalk wrote: > It was thus said that the Great allison via cctalk once stated: >> On 12/12/2018 03:04 PM, Sean Conner via cctalk wrote: >>> It was thus said that the Great allison via cctalk once stated: >>>> The whole thing c

Re: PET peve thing... Editors

On 12/12/2018 03:04 PM, Sean Conner via cctalk wrote: > It was thus said that the Great allison via cctalk once stated: >> The whole thing comes from a project for myself...  >> I wanted a very basic screen based editor written in 8080/8085/z80 asm >> and compact >> (

Re: PET peve thing... Editors

On 12/12/2018 03:08 PM, Sean Conner via cctalk wrote: > It was thus said that the Great allison via cctalk once stated: >> The whole thing comes from a project for myself...  >> I wanted a very basic screen based editor written in 8080/8085/z80 asm >> and compact >> (

Re: P112 redesigned for Z280? terminal

>> That is the easy part, where is the 99 cent dumb terminal to go with it? >> Ben. > Ben, look at Grant Searle's display system, not the Z80 CP/M but his three chip display system. Take two Atmel Atmega328Ps and a 74ls166  monitor and P2 keyboard required. That yields a 24line x 80char display

Re: PET peve thing... Editors

On 12/12/2018 02:49 PM, emanuel stiebler via cctalk wrote: > On 2018-12-12 14:41, allison via cctalk wrote: >> The whole thing comes from a project for myself...  >> I wanted a very basic screen based editor written in 8080/8085/z80 asm >> and compact >> (as in under

PET peve thing... Editors

The whole thing comes from a project for myself...  I wanted a very basic screen based editor written in 8080/8085/z80 asm and compact (as in under 4K).  I figured first lets inquire of the Internet to see if I need to and code exists... Well google is a rats bottom as now matter how you write it

Re: P112 redesigned for Z280?

On 12/12/2018 07:58 AM, David Griffith via cctalk wrote: > > My reply is at the bottom. > Please put your reply there too. > On Tue, 4 Dec 2018, ben via cctalk wrote: >> On 12/4/2018 1:17 PM, Tony Nicholson via cctalk wrote: >>> Hello David >>> >>> I saw your posting on the cctalk mailing list

Re: Another p112 Query

On 12/06/2018 10:37 AM, David Griffith via cctalk wrote: > On December 6, 2018 6:42:44 AM PST, Bill Gunshannon via cctalk > wrote: >> While we are talking about the P122   :-) >> >> >> Has anyone tried and/or had luck using an 8" floppy drive >> >> on the P112? >> >> >> bill > I haven't

Re: [rescue] Sun2/120 SunOS 3.2 suntools movie (was: advise on Sun2 disk install)

On 12/06/2018 07:28 AM, Liam Proven via cctech wrote: > On Thu, 6 Dec 2018 at 12:44, Tony Duell wrote: >> I don't think anyone is questioning that it's a workstation, and that it was >> made by Sun. >> >> I think the problem is over 'first' and that a Sun-2 is not going to be the >> 'first'

Re: P112 runs RSX-11

On 12/05/2018 05:00 PM, Torfinn Ingolfsen via cctalk wrote: > There is a "contact" link on this page: > http://p112.sourceforge.net/index.php?rsx180 > Maybe it works. > On Tue, Dec 4, 2018 at 6:48 PM Al Kossow via cctalk > wrote: >> >> >> On 12/4/18 7:51 AM, Dennis Boone via cctalk wrote: >>> >

Re: P112 runs RSX-11

On 12/04/2018 04:26 AM, David Griffith via cctalk wrote: > > I don't know who did it, but here's a video of a P112 running RSX: > https://www.youtube.com/watch?v=5s6IOCCk3Uw > > If the creator of this thing is reading, I'd very much like to get my > hands on RSX-180 and put it up on the P112 page

Re: N8vem and z80sbc

On 12/03/2018 03:34 PM, trtech thetrtech.com via cctech wrote: > Looking for software especially rom code for both of these SBC boards. Does google or other search engine work where you are... First hit was:   http://obsolescence.wixsite.com/obsolescence/the-n8vem-sbc Allison

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