test-drb

test-drb@ccmp.vtda.org

101090 discussions

by mark＠markesystems.com

From: dwight <dkelvey at hotmail.com> > If we'd thought about it we could count to 1023 on our fingers. I used to play string bass in a symphony, and there were many times that there would be long periods of rest, where it was important to count the bars (measures) going by so as to come back in at the right time. To this day (that was 40+ years ago) I can still count quite rapidly up to 31 on one hand (either one). Higher numbers slow me down a bit... Old bass joke: During the last movement of Beethoven's 9th symphony, there is a very long tacit (rest) for the basses. So the bass section all went over to the bar across the street for a drink or three. To keep the conductor from passing by their entry, they put a rubber band around his music. So the situation was... Bottom of the ninth, basses loaded, score tied. (sorry...) ~~ Mark Moulding

5 years, 2 months

Epson QX-10 hard drive

by imp＠bsdimp.com

Greetings I recently purchased a QCS external hard disk on ebay. This was one of the companies that was selling DEC Rainbow hard drives. I had hoped it was an old Rainbow drive with interesting to me bits... Turns out it is an Epson QX-10 hard drive, full of interesting to bits for the QX-10 CP/M enthusiast. I've had trouble finding a suitable community to note this in should there be people around that care... so I thought I'd ask here is people know of good CP/M groups and/or QX-10/16 groups, mailing lists, irc channels, discord servers, etc I could find. Warner

5 years, 2 months

APL\360

by commodorejohn＠gmail.com

> From: Chuck Guzis <cclist at sydex.com> > Numbering of bits in a word is also interesting. Is the high order bit > in a 64 bit word, bit 0 or bit 63? Both conventions have been employed. This one has always boggled me, because it's the one aspect of the Endian Wars where there's a simple, straightforward answer grounded in basic mathematics - base ^ digit-number only gives the correct place-value when the lowest-order bit is numbered zero. It's beyond my ken how anybody thought the reverse was *valid,* let alone a good idea.

5 years, 2 months

Just curious how many Hewlett-Packard Integral computers were sold. We have one here at the SMECC Museum that we are building a display around it for.

by couryhouse＠aol.com

Australian HP museum site... yes kudos to them!? What wonderful work they have done and some of the friendliest? peple around! Even though I pull a copy down from there. If it is,for something we have in the collection? I also try to get original manuals too.. On Sunday, January 31, 2021 Tony Duell <ard.p850ug1 at gmail.com> wrote: On Sun, Jan 31, 2021 at 6:25 AM Frank McConnell via cctalk <cctalk at classiccmp.org> wrote: > > On Jan 30, 2021, at 10:09, ED SHARPE via cctalk <cctalk at classiccmp.org> wrote: > > Hi Doug! No, we do not have a copy of this HP JOURNAL.? We do not have manuals? either.? We,are lucky to have the unit wonder if you can still order ink for the printer. I do have an unopened ink cartrige. You can get scans of the manuals from the Australian HP museum site Do you have any expansion boards in it? Extra memory is very useful (and you can turn any of the boards into a 1MByte one by adding the chips and changing links). As is an RS232 interface (something that IMHO should have been built-in) Do NOT leave the ink cartridge in the machine. The ink is somewhat corrosive and if it leaks onto the flexiprint that connects the cartridge to the logic PCB it will damage it. Due to the layout of the machine the flexiprint is longer than the one in a normal Thinkjet so you can't just raid one of those for spares. Yes there is a way to kludge it with ribbon cable and connectors but it's best not to have the problem in the first place. > > HP 51604A.? I was surprised a few months ago to find that Staples claims to be able to sell new HP cartridges.? Looking earlier today, HP can too! > > Seriously, we?re talking about ink cartridges including replacement print heads for printers manufactured in 1983. I was equally surprised to find that ink ribbons for the Epson HX20 laptop (M160 printer mechanism) along with the ones for the narrower M150 mechanism are still being made. But as I've said before, I'd rather find parts for a machine made 30 years ago than one made 5 years ago. -tony

5 years, 2 months

DEC backplane power connectors

by jnc＠mercury.lcs.mit.edu

> I have posted it here: Ooops, moved it; now here: http://ana-3.lcs.mit.edu/~jnc/tech/pdp11/jpg/dec_connectors.jpg Noel

5 years, 2 months

DEC backplane power connectors

by jnc＠mercury.lcs.mit.edu

> From: Tom Uban > The part numbers are: . A106239-ND, TE Connectivity AMP Connectors 1-171196-0, CONN PLUG 6POS MATE-N-LOK NATRL > A1427-ND, TE Connectivity AMP Connectors 1-480323-0, CONN PLUG 15 POS MATE-N-LOK > See attached picture That didn't come through for people on the list; I have posted it here: http://ana-3.lcs.mit.edu/~jnc/tech/pdp11/jpg/tmp/dec_connectors.jpg so everyone can see his connectors. > Looking at the TE.com catalog, the picture for 1-480273-0 does not match > my DD11-DF connector Actually, the 1-480273-0 is _exactly_ the unit DEC used; I looked at the power distribution panel from a BA11-K, and that's what it uses. (I'm too burned out to look at the engineering drawings and get the part number to confirm; I'll do that 'soon'.) I took a picture of the male shells, and added it to the CHWiki page (I'll add the females tomorrow). The detail of the 6-pin one didn't show up too well, so I took another closeup of just it, here: https://gunkies.org/wiki/File:DECPwrConnMaleSml.jpg Your 15-pin is the same as mine (the part number matches). Your 6-pin has 'wings' on the side (these prevent it pulling through when placed in a hole in sheet metal); the 6-pin DEC used has little right-angle arms, just like the ones on the 15-pin, to brace it in place. They are compatible, though, I think; a female shell that will take one probably will take the other. Noel

5 years, 2 months

Just curious how many Hewlett-Packard Integral computers were sold. We have one here at the SMECC Museum that we are building a display around it for.

by Wayne.Smith＠warnerbros.com

On Sat, Jan 30, 2021 at 9:01 AM ED SHARPE via cctalk <cctalk at classiccmp.org> wrote: > Just curious how many Hewlett-Packard Integral? computers were sold.?? > > We have one here at the SMECC Museum that we are building a display around it for.?? > > Of course we are looking for any advertising material, posters or anyting visually related to this computer to make the display "more than just a computer on the table"? > > Please let us know if you have any material that would fit this need!?? > > Thank you very much in advance > Ed Sharpe - Archivist?? for SMECC As to the number sold, you should be able to get a sense of it by collecting serial numbers from those who have them - once you get enough of them (maybe 20 or so) you should get a sense of about where the numbering started and where it ended. I have two units and if you're interested I can pull the numbers and send them along.

5 years, 2 months

Microsoft fortran and c manuals

by rdawson16＠hotmail.com

Hi Thomas, Did you ever the pdf copies of these? I also would like to get a set. Thanks, Randy

5 years, 2 months

Usenet and Google Groups

by jfoust＠threedee.com

At 06:01 PM 1/30/2021, you wrote: >>>Which Henry was that?? Henry Spencer perhaps? >>Yes, Henry Spencer (formerly of zoo.toronto.edu). >>N. > >Another blast from the past. I haven't seen anything of or spoken with him in nearly 30 years. A legend, indeed, and one that only makes me upset about Google's Usenet archive. https://en.wikipedia.org/wiki/Henry_Spencer https://en.wikipedia.org/wiki/Google_Groups Couldn't Google just give someone else a copy of what Spencer (and everyone else) gave them? - John

5 years, 2 months

Just curious how many Hewlett-Packard Integral computers were sold. We have one here at the SMECC Museum that we are building a display around it for.

by couryhouse＠aol.com

Wayne.. yes please send the 2? serial numbers and others are invited to participate also. Probably good idea to send offlist? to kerp from clogging lister.? Thanks Ed# On Sunday, January 31, 2021 Smith, Wayne via cctalk <Wayne.Smith at warnerbros.com; cctalk at classiccmp.org> wrote: On Sat, Jan 30, 2021 at 9:01 AM ED SHARPE via cctalk <cctalk at classiccmp.org> wrote: > Just curious how many Hewlett-Packard Integral? computers were sold.?? > > We have one here at the SMECC Museum that we are building a display around it for.?? > > Of course we are looking for any advertising material, posters or anyting visually related to this computer to make the display "more than just a computer on the table"? > > Please let us know if you have any material that would fit this need!?? > > Thank you very much in advance > Ed Sharpe - Archivist?? for SMECC As to the number sold, you should be able to get a sense of it by collecting serial numbers from those who have them - once you get enough of them (maybe 20 or so) you should get a sense of about where the numbering started and where it ended.? I have two units and if you're interested I can pull the numbers and send them along.

5 years, 2 months

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