< 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
>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
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.
Its clean, fully functional (all 3 functions... ummm... 3? maybe 2.5
since 'multiply' is manually assisted), brightly colored Commodore tag and
icon on the front.
I'll be adding a picture on my web pages of it along with my next set of
updates, and (hopefully) my pictures from VCF II. (RSN)
-jim
---
jimw(a)agora.rdrop.com
The Computer Garage - http://www.rdrop.com/~jimw
Computer Garage Fax - (503) 646-0174
The same seller has listed Altair toggle switches
with a $10 minimum bid. Jim, do those appear to be exactly
like the switches you sell? Or do they differ from
your's? Here is the link to the auction with the
photo...
http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=35724070
Bob Wood
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
Yep. They're PC/XT clones. The Tandy 1000TL's had the microphone port.
They had a built-in "Tandy Sound Chip". It put out better sound (in Tandy
1000-supported games) that the standard PC-speaker setting. Haven't gotten
the mic to work yet, though. I wish I could find a driver that would run
the chip through Windows...
I have seen the type that looks like a C64 (can't remember if it was a 1000
or not. They did make the CoCo series, but they didn't have the disk
drives. If anyone has one of the 1000's (?) with the built-in drive (and
keyboard), and you want to sell it, send me an email, because I'm probably
interested.
--
-Jason
(roblwill(a)usaor.net)
ICQ#-1730318
----------
> From: Max Eskin <maxeskin(a)hotmail.com>
> To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
> Subject: Re: Tandy Keyboard
> Date: Wednesday, October 14, 1998 9:49 PM
>
> 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.
>
If the plug on the RL has a DIN plug with (8?) pins (one in center), then
the keyboard from the SX or TX will work. If it's a standard 5-pin DIN,
then just use an XT keyboard.
--
-Jason
(roblwill(a)usaor.net)
ICQ#-1730318
----------
> From: Eileen Backofen <backofene(a)hotmail.com>
> To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
> Subject: Re: Tandy Keyboard
> Date: Wednesday, October 14, 1998 8:56 PM
>
> We've been throwing out all our Tandy stuff at school. I've seen TLs,
> TXs, SXs and even an HL. But I don't remember an RL. Will the others
> work?
>
> Eileen
>
>
>
> >
> >Greetings
> >
> >I was given a Tandy 1000RL, I need a old Tandy keyboard as nothing else
> will
> >work with this machine. Anybody have one laying around //
> >
> >
> >Gary
> >
> >
>
>
> ______________________________________________________
> Get Your Private, Free Email at http://www.hotmail.com
Is there any way in which they are better than Apple //e? I know the
Laser 128 has some specific improvements.
>They are Apple IIe and IIc compatibles with 128K RAM,80 Column video,
Double
>High Resolution Display (560 x 192) of the IIc.
>They use the 65SC02.
>The diskettes drives are 40 track and 35 track compatible
>The ACE 2000 has no disk drive, the 2100 has one and the 2200 has two
(my
>2100 has two, must be an upgrade)
>I think my 2100 also has the etended memory card that brings it up to
384K.
>
>Francois
>-------------------------------------------------------------
>Visit the desperately in need of update
>Sanctuary at: http://www.pclink.com/fauradon
>
>
>>
>>Does anyone know about this thing? It's a black machine, looks like
>>a PC clone. I gather this is an Apple ][-compatible?
>>
>>______________________________________________________
>>Get Your Private, Free Email at http://www.hotmail.com
>>
>
>
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
>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. How do you cable RX33's? I set them to Drive 0 and 1, as the docs
>said, and then used a Y-splitter for the power with a standard PC floppy
>cable (do I need one without the twist?). Can you use RX50 floppies to
>boot a system with RX33 drives?
Yes. In fact, the RT-11 distribution on 5.25" floppies is RX50
compatible, which also works on RX33. If the disk is formatted
by an RX33, then it will only work on an RX33, though (at least
when using the RT-11 FORMAT command).
>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.
Since you're using the distribution kit, the answer is no. The address
which the distribution handler (a single-port handler) expects is the
primary address, 17772150. Even if you were able to get the boot code
to read the boot block into memory, the first time the driver gets
control, it will try the default primary address and fail.
>Is it possible to create a Bootable TK50 with RT-11 that can be used to
>do the install?
Even when I worked in the RT development group, I avoided the attempt
at making bootable magtapes... But the answer is, yes... you could
make a bootable magtape (TK50). But you need to boot an RT system to
do so, so we're back to a chicken and egg problem...
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
>To get RT-11 to deal with two DU controllers, you can either:
>
>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 problem with this technique is that the handler name is built into
the driver, which is used by XM to locate the extended memory region
used to store data (and other code), and the two handlers would still
have the same name. You would need to SIPP the new handler and search
for all references to the name 'DU' (search for ;rDU) to 'DG' (;rDG).
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
OK, I've got some more questions. It seems I've finally got the PDP-11/73
I'm working on to talk to the floppy drives. BUT, it won't boot my RT-11
RX-50 floppies.
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.
How do you cable RX33's? I set them to Drive 0 and 1, as the docs said,
and then used a Y-splitter for the power with a standard PC floppy cable
(do I need one without the twist?). Can you use RX50 floppies to boot a
system with RX33 drives?
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.
Is it possible to create a Bootable TK50 with RT-11 that can be used to do
the install?
Zane
| Zane H. Healy | UNIX Systems Adminstrator |
| healyzh(a)ix.netcom.com (primary) | Linux Enthusiast |
| healyzh(a)holonet.net (alternate) | Classic Computer Collector |
+----------------------------------+----------------------------+
| Empire of the Petal Throne and Traveller Role Playing, |
| and Zane's Computer Museum. |
| http://www.dragonfire.net/~healyzh/ |
