You may not have noticed ;) but I've been too busy to do
anything list-related for the last couple weeks. I'll
catch up on the old messages soon.
New stuff:
1. After a 2 week linux installation the classiccmp server
is on-line (yeah, it was really ugly). Anyway we now have
a couple gigs of storage space available. If you want to
create anything for the web site I can provide space.
The web site is now http://haliotis.bothell.washington.edu/classiccmp/
The ftp site is now ftp://haliotis.bothell.washington.edu/pub/classiccmp/
2. I will be taking a week-long vacation in San Luis Obispo, CA in
early september. There is a huge computer scrap-yard in the area that
I will be checking out. If any of you local to the area would like
to join up for that, let me know.
Bill Whitson
Whilst in a self-induced trance, jpero(a)mail.cgo.wave.ca happened to blather:
>> I know that this really doesn't fit here, since I only bought this calc
>> yesterday, but I figure that someone here may know...
>>
>> I bought a TI-85 graphing calculator, and it has a 3-wire computer
interface.
>> It seems that for $40, you can buy a cable adapter to hook it to a PC's
COM
>> port. Software can be gotten from TI's Web site.
>>
>> I don't want to pay $40 for a DB-9 connector and a 3-wire headphone
jack. I'm
>> guessing that the interface is a software-handshaking 3-wire RS-232
setup, but
>> before I hook something up to the calc, I wanted to ask if anyone has this
>> calc and can shed some light on it.
>Sorry to throw wet towel on you...those "dongle" interface kit guess
>what has little complex board inside. Real sucker really.
>
>We did that this year to see if we can do that too. :)
Hold on there, pardner! This isn't nearly as complex as you think. If the
TI is anything like my Casio FX9700G graphic calculator, with the funky
3-wire headphone hookup, you can most likely do it with 1 or 2 chips or
even just some diodes and resistors. What it is, is the interface is an
*almost* standard RS-232 interface. Speed and all is normal, but it prolly
only works on TTL levels. The PDDs (Portable Disk Drives) from Tandy to be
used on their old, non-MS-Dos laptops did the same thing... used RS-232 but
only at +5V and 0V levels.
Use a diode to change the -12V to 0V, and resistors to change the +12V to
+5V .. it helps to have a cable to test first for that one, tho. On the
Tandy PDDs, the resistor value was 22K Ohms IIRC and any cheap .6V drop
diode would do (read: 1N914 -- everybody's buddy)
Otherwise, just design a small, self-powered 1488/1489 box to convert the
levels, and you're off and running. I was planning on doing this for my
Casio, but haven't had the time just yet.
(Maybe I can just use my TPDD cable... hooking up the appropriate wires???
Something to think about.)
Anyway, I hope this helps!
Roger "Merch" Merchberger
--
Roger Merchberger | If at first you don't succeed,
Programmer, NorthernWay | nuclear warhead disarmament should *not*
zmerch(a)northernway.net | be your first career choice.
Hi Kai::
I don't remeber if I got back to you about the Lisa. If I did, I guess
just ignore this post. You had mentioned that you do not have access to
the Office system. I have a set of disk images of the Office system as
well as the workshop that I can email you if you would like. Also, I
have information on removing the serialization if you already have a
serialized set you would like to install.
Rob
Did anyone see this? Sounds like a nice system.
Sam
-------------------------------------------------------------------------------
Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass
---------- Forwarded message ----------
From: jkeane(a)j51.com (Joseph Keane)
Subject: FS: Commodore 8032
Date: Tue, 29 Jul 1997 02:07:36 GMT
For Sale:
Commodore 8032 Computer (80 column screen - 32k memory)
Free with computer:
2031 Single Disk Drive - Works except occassionally hangs up.
All original manuals. Original owner - kept under dust cover, in great
shape, with original boxes, and lots of disks, games, and word processor,
with instructions. Great addition to your Commodore collection!
Asking $40.00 for everything. Pick up only - Rockland County, New York.
E-Mail for more information to: jkeane(a)j51.com
--
Sam
-------------------------------------------------------------------------------
Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass
On Wed, 31 Dec 1969, Marvin wrote:
> Among the things I picked up yesterday was a Zenith Data Systems
> keyboard, model ZTX-1-A. The top of the keyboard looks like a regular
> keyboard but the back has an RCA jack labeled "Video Output", a 40 pin
> header labeled "Printer", a pushbutton labeled "Save", a db9 male
> connector labeled "Power", two phone jacks labeled "Phone Connect" and
> "Wall Connect", and a switch near the phone jacks labeled
> "Multiline/Single Line". Anyone have any idea what this thing is?
Find the power supply for it, hook it to a TV and boot it up. Sounds
like a whole computer!
Sam
-------------------------------------------------------------------------------
Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass
I'm curious if anyone knows what this machine is. (What OS it runs, etc.)
It's a Pertec machine with a 68020, Floppy, SCSI?, looks like 4MB RAM,
and serial(?) ports on the back.
The power supply has a "ST-100" stamped on it (along with a June 1988 date)
The backplane itself has ST-98 Rev 003 written on it. The main sockets on the
backplane are two 60-pin slots.
It claims to be a "3226", according to the plate on the back. That info also
says it's of type "P7005".
I haven't seen the machine... this is info I've collected from emailling
the owner. (I guess this machine is a year too new for this list. I hope
you'll forgive me.)
thanks
ttfn
srw
Hello, all:
Just an update on the Altair info that my friend is scanning for me. Below is
the list. He is preparing a ZIP disk for me containing the files in the PDF
forman. I'll have it in a couple of weeks.
He also said that he wants to scan other materials that he has, such as
Altair Basic and Extended Basic manuals, the Assembler manual and others, plus
the MITS "Computer Notes" as well as material from other manufacturers. I told
him that I want it all (like I would really say no?)
Holy, cow, what a list...
------------------------
Rich Cini/WUGNET
<rcini(a)msn.com>
- ClubWin Charter Member (6)
- MCPS Windows 95/Networking
==============>>>> The List
Altair 8800 Stuff
Altair 8800 Operator Manual op_man.pdf 5.49MB
Altair Audio Cassette Interface 8800-acr.pdf 2.19MB
Altair 4K Static RAM 8800-4mcs.pdf 1.28MB
Altair 4 Parallel I/O 8800-4pio.pdf 1.77MB
Altair Vector Int. & Real Time Clock 8800-virtc.pdf 1.93MB
Altair 8800B Manual
All Sections (338 pgs.) 8800b.pdf 26.37MB
Front/Index 8800b-i.pdf 515KB
Intro (Sect.1) 8800b-1.pdf 558KB
Op. Guide (Sect.2) 8800b-2.pdf 6.25MB
Theory of Op. (Sect.3) 8800b-3.pdf 8.51MB
Troubleshooting(Sect 4) 8800b-4.pdf 3.78MB
Assembly (Sect.5 8800b-5.pdf 6.31MB
Parts List (App. A) 8800b-a.pdf 438KB
Processor Technology 4K Static RAM 4kra.pdf 445KB
Processor Technology MotherBoard pt_mb.pdf 373KB
Cromemco Bytesaver bytsavr.pdf 1.22MB
I hate it when this happens...
As it turns out, it's not an RRD40 CD-ROM drive I should be after.
According to a manual I just picked up, it's the RRD50.
With that in mind... Allison? Tim? Would either of you happen to have a
line on a DEC RRD50 drive and controller?
And no, Allison, I've not given up on MOPbooting. It would just be a
Nice Thing if I didn't have to depend on that every time I needed to do
a load.
Thanks in advance.
==Bruce 'Why me?' Lane
(kyrrin(a)wizards.net)
