test-drb

test-drb@ccmp.vtda.org

101090 discussions

by maxeskin＠hotmail.com

amazing amount of information on the Tandy site! They should be proud of themselves, considering someone was actually paid for typing this stuff up! > >Lawrence Walker wrote: > >> On 14 Oct 98 at 18:49, Max Eskin wrote: >> >> > Are these PC clones? I have seen a tandy (1000, I think) that had a >> > microphone port. Why was this? I have also seen a tandy which was >> > sort of like a C64 except it had a 3.5" disk drive. I'm _certain_ it >> > was a tandy. >> > >> They did run Dos and supposedly Gates wrote the OS for them. They were >> very similiar to the PC jr. and had a better resolution on the Tandy monitors >> than CGA. Can't remember the mike port but I seem to remember they did have >> a superior sound chip. TRS had a proprietory GUI (of sorts) called Deskmate >> that came with the sytem. The C64 type was likely a CoCo of which Murch is >> the resident expert. I believe he moderates the CoCo m-l .The CoCo 2 and 3 have >> an OS available called OS-9 which is IIRC quite impressive. > >The HX and EX were the 1000 versions that were low profile and were DOS, not OS/9 >machines. The HX had the 3.5" 720k floppy drive(s) in front and the EX had a 5.25" >360k drive on the right side. Both used a proprietary card slot known as a Plus >expansion and the cards (serial, hard disk and memory) are getting very hard to >come by anymore. > >Tandy has all the specs on the 1000 models on text files at >http://support.tandy.com/ > >Jason is correct on the keyboard plugs too. Later models went to a common keyboard, >older ones used a Tandy specific with a Tandy 1000 sticker on the back. The 2000 >used a similar looking keyboard but wired differently and had a 2000 label on the >back of it. > >THROWING the 1000's away?? You ought to b4e ashamed. <g> > > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

27 years, 11 months

RL02 slides & brackets

by dburrows＠netpath.net

I have several here and you are welcome to a set for the shipping Plus a couple $ for boxing materials. Dan Burrows 336-376-0468 dburrows(a)netpath.net -----Original Message----- From: wanderer <wanderer(a)bos.nl> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Thursday, October 15, 1998 2:35 PM Subject: RL02 slides & brackets Hello All, Who can help me with a pair of RL01/RL02 slides and the 4 brackets? I want to mount my 3rd RL unit in the cabinet but don't have a 3rd pair of them. A payment can be discussed. Thanks, Ed -- The Wanderer | Geloof nooit een politicus! wanderer(a)bos.nl | Europarlementariers: http://www.bos.nl/homes/wanderer | zakkenvullers en dumpplaats voor Unix Lives! windows95 is rommel! | mislukte politici. '96 GSXR 1100R | See http://www.bos.nl/homes/wanderer/gates.html for a funny pic. of Gates!

27 years, 11 months

Lisa software available

by Marion.Bates＠Dartmouth.EDU

IP changed. New address: 129.170.86.186 Lisa Office System software and LisaTest (ftp), and information (http). -- MB

27 years, 11 months

A Commodore 'pre-computer'

by CLASSICCMP＠trailing-edge.com

>Ok, so it may not fit the 'computer' part of the charter, but it sure fits >the 'more than 10 years old' part... (and its borderline cute) >Just picked up a Commodore desk adding machine. I certainly think that any electronic computing machine is appropriate here. Three of my prized items in my collection: HP9100B desktop calculator HP9835 desktop calculator/BASIC computer Monroe/Litton 1101B desktop/deskside programmable calculator. Tim.

27 years, 11 months

RX50 / RX33 Questions related to PDP-11's

by CLASSICCMP＠trailing-edge.com

>I'm using the RQDX3 controller as the floppy controller and the WQESD >(ESDI) controller as the boot device. When I tell the system to boot from >DUB0 or DUB1 which is the terminalogy that the WQESD controller expects >(figuring that out, i.e. reading the manual took longer than I want to >admit) with a RX50 attached, it will access the floppy drives, this is best >evidenced by my using a cleaning floppy in the drive (made it easy to hear >the drive being accessed). >When I try using a pair of Teac floppies I've converted to RX33's using >information I found on Sunsite I'm not really sure it tries to access them. Keep in mind that early RQDX3 revisions don't know how to talk to RX33's - they're limited to RX50 floppies. Seeing as how your system is apparently doing bizarre things with the RX33's, this might be the case. What exactly do your "RX33's" do when you try to access them? What firmware revision is your RQDX3? > Can you use RX50 floppies to boot a > system with RX33 drives? Yes. >Will RT-11 boot off of a floppy drive at CSR 17760334? I've tried with >both the Boot disk from my RX50 distribution set, and a RX50 boot disk that >I made using PUTR. I've a sinking feeling that having two disk controllers >is confusing RT-11. To get RT-11 to deal with two DU controllers, you can either: 1. Do a SYSGEN to create a DU handler that can handle more than one DU controller. With recent enough RT-11's, the same handler copes very nicely with multi-port booting. 2. COPY DU[X].SYS to another name (say, DG[X].SYS), and then SET DG:CSR=nnnnnn and SET DG:VECTOR=nnn, where nnnnnn is the CSR and nnn is an unused vector in your system. When you create a bootable floppy which you want to be bootable on your second controller, you must lay down the DG bootstrap instead of DU, since the DU device points to the wrong controller. The tradeoffs between the above two methods are documented in the RT-11 _System Generation Guide_ and the RT-11 _Device Handlers Manual_. Method #2 above is easily the quickest, and will probably do just fine for your purposes. (Though a RT-11 system with extended-unit multiport DU handler is a beautiful sight!) >Is it possible to create a Bootable TK50 with RT-11 that can be used to do >the install? Look for the file MUB.COM on your distribution: ! COPYRIGHT 1989, 1990 BY DIGITAL EQUIPMENT CORPORATION ! ALL RIGHTS RESERVED ! ! MUB.COM command file used to build binary kits Again, it will depend on which version of RT-11 you're running whether MUB.COM is MU-bootability is present. -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology Voice: 301-767-5917 7328 Bradley Blvd Fax: 301-767-5927 Bethesda, MD, USA 20817

27 years, 11 months

RX50 / RX33 Questions related to PDP-11's

by IVIE＠cc.usu.edu

> DU device became available with RT V5.0. It supported RQDX1. I > think that RQDX2 was supported with V5.1 (though it may have been > latently supported with V5.0). I had to trade back some RQDX2s for RQDX1s on some PDP-11/73s I delivered to the gummint because RT-11 didn't support them. I don't recall which version we were using; it would have been at least 5.0. I remember grumbling about how fancy (read "bloated") RT-11 was getting, but I don't recall doing _that_ until 5.2; I thought it happened during the 11/73 incident, though. I also don't remember why I thought 5.2 was bloated (it may have been the UCL/UCF stuff, which I thought was unnecessary), but I did stash away a 5.0 distribution kit as a hedge against bloatation. Roger Ivie ivie(a)cc.usu.edu

27 years, 11 months

RX50 / RX33 Questions related to PDP-11's

by CLASSICCMP＠trailing-edge.com

> I had to trade back some RQDX2s for RQDX1s on some PDP-11/73s I delivered > to the gummint because RT-11 didn't support them. I don't recall which > version we were using; it would have been at least 5.0. I remember > grumbling about how fancy (read "bloated") RT-11 was getting, but I don't > recall doing _that_ until 5.2; I thought it happened during the 11/73 > incident, though. I also don't remember why I thought 5.2 was bloated > (it may have been the UCL/UCF stuff, which I thought was unnecessary), Yes, the UCL stuff is unnecessary, which is why if you don't want it you simply answer SYSGEN question 100 with "NO": 100. Do you want the user command linkage (Y)? $ USER COMMAND LINKAGE OPTION: The user command linkage allows you to define your own commands which can be issued in a format similar to the standard DCL commands. 100. Do you want the user command linkage (Y)? NO > but I did stash away a 5.0 distribution kit as a hedge against bloatation. An even better hedge against bloatation is to get RT-11 5.6 or later and learn how to use SET RUN VBGEXE. No matter how big the monitors and drivers grow, by appropriately setting a .SAV image's VBGEXE bits you can give it access to "all" 56kbytes of virtual memory space. If you want direct access to I/O space, you can turn that on too, or you can also elect to have 64kbytes of virtual memory space available to your process if you don't need direct access to I/O space. -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology Voice: 301-767-5917 7328 Bradley Blvd Fax: 301-767-5927 Bethesda, MD, USA 20817

27 years, 11 months

old CDS modem

by lfb107＠psu.edu

Found an old modem that I forgot I owned and was just wondering a few things. First, it's a Concord Data Systems 224 ARQ/Autodial that I now remember was in tow by a 3B2 I picked up a while ago. Anyway, it's rather heavy (humongous hat sink on back) so i opened it up and began to think that the innards seemed a bit complicated for a 'modem.' OK, I'll admit it, I was 11 years old when these things would have been in use, but I have other modems from the peiod ('85-'86) that aren't nearly as complex. It's about the size of a large book and has three levels of circuit boards with a Z80 CPU, an SIO chip, and memory chips (one says "zeropower (tm) ram" on it and "DO NOT DISPOSE OF IN FIRE!!!!") on one level, Intel 8031 series chips on another and who knows what on the bottom (haven't taken it all apart yet). Not to mention the 32 dip switches (all off) and the 23 led's on the front. To make a long story short, what did/does this thing do that a regular modem of the time didn't do? Thanks, les

27 years, 11 months

PROM Burner

by allisonp＠world.std.com

< I had hoped to be able to use it to back up older ROMs which my circa 19 < EPROM programmer can't handle. Is it usable for this? It is the programmer of the era and with the right adaptors will program most anything including some faily current devices. The data io model 22 was faily close but newer and info on that will help with the serial port operation. < It has a serial type connector but no software (it predates the PC). The < is an LED and a hexadecimal keyboard. It looks like it was meant to be u < manually !! Typing stuff in character by character. The serial port acan be used that way but with the right terminal program and intel hex or Moto hex files you could up/download prom data. Allison

27 years, 11 months

Franklin Ace 2100

by fauradon＠pclink.com

>Is there any way in which they are better than Apple //e? I know the >Laser 128 has some specific improvements. I haven't tasted them yet ;) I don't really know yet. I would believe that they added some features but how would you define "better", more reliable, faster, bigger software library? All I can do is look at the specs and compare the two. Francois ------------------------------------------------------------- Visit the desperately in need of update Sanctuary at: http://www.pclink.com/fauradon

27 years, 11 months

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test-drb