>> .... My Einstein came with the 80 column add-on ....
> I've never seen one, but I've always suspected it was a 6845 + 2K RAM +
> character generator + TTL glue logic in the obvious configuration. How
> close am I?
Not close, exact. The 'MODEL TK02 80 COLUMN MONOCHROME CARD' has:
UM 6845 8440 , TMM2016BP-10 , TMS2764JL-45 , a 10Mhz oscillator (may
be 16 or 18 - can't quite read it and havn't put a 'scope on it yet)
and fifteen 74LSxxx chips.
> How much hardware-related info do you have? I can find (easily) things
> like connector pinouts, etc.
Absolutely none but I'm not looking further than getting an OS at the moment
- if it then doesn't work however, I'll remember your kind offer.
John Honniball asked about the disks in the Einstein - having now taken them
out of the steel box sleeve which every 3.0" drive seems to come in I can
report that they are different to the Amstrad PCW8256/8512 drives -
whereas the Amstrad are the 'infamous slack belt' drives, the drives in my
Einstein are Teac direct drive (hurray!).
Doug.
Last time I went to the surplus electronic shop that I visit. I saw
what was labeled as being a System 36. It was basically a really over
grown full tower, with a few other peripherals. Did I see the whole
unit, or just a small part? Would this be something I could do
something with? Does any freeware exist? How about the OS.... is it
around, and attainable? What kind of processing horsepower does it
have?
I didn't really look at it, while I was there. I knew they are the
ancestor to the AS400, and the AS400 is sort of a white elephant for the
hobbyist.
Chad Fernandez
Michigan, USA
In a message dated 3/7/01 1:52:14 PM Central Standard Time,
mapr0003(a)stud.uni-sb.de writes:
<< Hi, I am interested in old computers especially in i286 (PC/AT)class
computers. I am looking for a multitasking OS which uses the capabilities
of this CPU like memory protection, 16MB address space, etc.
I only found Xenix/286 which take advantage of this 286 features or are
there other ones as well?
Is it still possible to find copies for this version of Xenix?
Thanks in advance >>
not sure of xenix, but why not try OS/2? Version 1.3 can still be found and
will run on as little as 2 meg I believe.
david, OS/2 user
In a message dated 3/7/01 1:07:48 PM Central Standard Time,
gehrich(a)tampabay.rr.com writes:
<< I received my AC Adaptor for my L40SX and the screen does not come on.
Can anybody tell me what the lights and switches mean on the console.
I have some symbols showing in some of the little windows.
With power on from left to right they show:
dark
dark
right arrow
underlined % sign
vertical bar
up arrow
up arrow
box which could be a screen symbol
dark
With power off the right arrow shows a battery and all of the others are dark
On the right of the screen there are two slide bars one labeled with a
shining sun the other like a half moon.
Neither seems to do anything >>
does your hard drive spin up? any flicker from the LCD? does the floppy seek?
what if the battery is removed? Since you have a mono LCD those slider bars
just adjust the brightness and contrast. I forgot what the switches do as my
L40 is put away. One thing you might want to check is to make sure the
computer hasnt been in any environmental extremes. It will not turn on if
temperature or humidity is excessive. Once it acclimates to room temp it
would function normally.
see one of hundreds of computers, or a hot rod pinto at:
www.nothingtodo.org
On 2001-03-06 classiccmp(a)classiccmp.org <Tony Duell> said:
>> have our personal preferences. But let's also determine (at least
>> for ourselves) a general principle or two that points to the value
>> of classic computers -- more specifically -- their purpose and our
>> realistic expectations of them beyond mere entertainment value.
>First and foremost : Education.
Excellent. Now that we have a general principle with which to begin,
how could we expand on it? One thing that comes to my own mind are
the lessons we can learn from how our earlier computer and software
engineers worked so cleverly with such meager resources, which forced
them to create more efficient code and creative shortcuts to avoid
wastefulness...
>Secondly : Preserving some of the forgotten areas of computing.
>Either as examples of what not to do in the future, or as examples
>of things that should be tried again (either because the technology
>to implement them was not really available years ago and is now, or
>because, although there was a suitable replacement, the older
>method with newer technology is even better).
Wonderful! In this matter, we see eye to eye. I'm all for the idea
of constructing new computers built upon the tried and true principles
of "frugal" designs. Our classic computers could serve as the
inspiration for such possible endeavors.
Jerry... on his IBM PC/AT 5170 Model 339 | My laptop computer's a
***** 9600kbps/30MB HD/512k RAM/8 MHz | Tandy TRS-80 Model 100
Net-Tamer V 1.11.2X - Registered
Like any other engineering project, the first logical step is to compile a
complete system requirement. Once you really understand what the project
expectations are, it's pretty easy to decide on an architecture to support
those expectations.
To arbitrarily decide what's important to the customer, will certainly lead
to failure. For instance: You state that one of the reasons that you would
recommend VMS is that there are no known viruses. If viruses are really not
a concern for the customer, that should NOT be a factor in the decision
making process. After all, they may already have a very secure LAN and
experienced administrators. To make architectural decisions based on areas
that you perceive as important is a path to disaster. Don't assume that you
know what the customer wants and just as importantly, don't assume that the
customer knows what they want!
On the other hand, if "usability" is one of the primary factors, they may be
stuck with NT. As much as we may detest the OS for it's poor reliability,
far more people are comfortable with the WIN interface than any other OS. In
some environments, it may actually be more acceptible to reboot the system
every day or have unexpected failures than to retrain the people that will
use the system. Actually, NT used only for data presentation is not all that
bad. Once again, that's a business decision that should be addressed in the
requirements.
My guess: NT for the presentation layer, LINUX or a derivitive with strong
device support in the backend.
Just my $.02
Steve Robertson
>One of the Radiologist's I work with asked me the following question.
>
>Which computer would you buy if you were only going to do file transfers
>and
>archiving? I answered a VAX/Alpha running VMS since there were no known
>viruses and that system security was good. My answer was predicated on the
>fact that he needed storage for medical images and that he needed to
>maintain complete medical confidentiality. He is totally frustrated with
>the lack of reliability on Windows NT and is favoring SUN based systems.
>The trend in radiology is to move toward Windows NT platforms because the
>companies can't get support staff that can handle anything else. Our
>biggest problem, since we are a children's hospital is that we must
>maintain
>the data for 25 years. Actually 7 years once the child turns 18. In
>practice we plan never to get rid of any data.
>
>Examples of systems in Radiology
>
>CT scanner using SGI computer
>CT workstation using SUN running Solaris
>Vitrea 3D workstation using Windows NT on HP Kayak computer
>Laser film printer network running MS-DOS
>Laser film printer network running LINUX
>MRI scanner using SUN
>Film digitizer running on PC using Windows NT
>Nuclear medicine system with Windows NT, Mac G4, and Linux on PC
>VME systems embedded in film printers
>
>I have 8" floppies from old CT scanners, QIC tapes, DAT tapes, MO disks, 5
>1/4 floppies, 3 1/2 floppies, 9 track tapes
>
>I was offered from a major US company a radiology image management system
>the other day that had the following systems.
>Windows NT display stations
>Apple Macintosh image archive server
>Sun webserver and image server
>I don't think anybody could support and troubleshoot such a system. Their
>answer is that they support the system today and will provide an upgrade
>path when they change every 3-4 years.
>
>woe-is-me
>Mike
>mmcfadden(a)cmh.edu
>
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com
One of the Radiologist's I work with asked me the following question.
Which computer would you buy if you were only going to do file transfers and
archiving? I answered a VAX/Alpha running VMS since there were no known
viruses and that system security was good. My answer was predicated on the
fact that he needed storage for medical images and that he needed to
maintain complete medical confidentiality. He is totally frustrated with
the lack of reliability on Windows NT and is favoring SUN based systems.
The trend in radiology is to move toward Windows NT platforms because the
companies can't get support staff that can handle anything else. Our
biggest problem, since we are a children's hospital is that we must maintain
the data for 25 years. Actually 7 years once the child turns 18. In
practice we plan never to get rid of any data.
Examples of systems in Radiology
CT scanner using SGI computer
CT workstation using SUN running Solaris
Vitrea 3D workstation using Windows NT on HP Kayak computer
Laser film printer network running MS-DOS
Laser film printer network running LINUX
MRI scanner using SUN
Film digitizer running on PC using Windows NT
Nuclear medicine system with Windows NT, Mac G4, and Linux on PC
VME systems embedded in film printers
I have 8" floppies from old CT scanners, QIC tapes, DAT tapes, MO disks, 5
1/4 floppies, 3 1/2 floppies, 9 track tapes
I was offered from a major US company a radiology image management system
the other day that had the following systems.
Windows NT display stations
Apple Macintosh image archive server
Sun webserver and image server
I don't think anybody could support and troubleshoot such a system. Their
answer is that they support the system today and will provide an upgrade
path when they change every 3-4 years.
woe-is-me
Mike
mmcfadden(a)cmh.edu
Mark K. said:
>Cleaning the disk surface is easy (remember, with disk side A up, the surface
>for side A is underneath), so you may as well try that before attempting to
>open the drive. If you don't want to buy a purpose-designed disk cleaning kit
>you can use a lint-free cloth. Breathe on the disk and carefully wipe
>radially, rotate the disk slightly and repeat. Preferably wear some plastic
>gloves to prevent skin oils from touching the disk.
I once in an optics lab *suggested* (lucky me) breathing on a
component to moisten it before wiping. The instructor *yelled* at me (only
time) to make sure I didn't carry through. (CO2 + water in your breath =
dilute carbonic acid? He didn't amplify on what all is in breath, but he
made sure I used IPA or de-ionized water or something after that.)
Not knowing the proper solvent, I'd tentatively suggest iso-propyl
alcohol, but would avoid breathing on optics (or media) if at all possible.
It may be MO disks are sufficiently rugged it makes no difference, but that
formative experience has convinced me it's not a good habit to be in.
- Mark T.
What in the world made you think this group is a C and SQL support resource?
Many of us work with both but this is not the place.
Allison
------Original Message------
From: J4430(a)aol.com
To: classiccmp(a)classiccmp.org
Sent: March 7, 2001 8:39:30 AM GMT
Subject: makefile/embedded sql
Hello i'm trying to write a embedded Sql program in C but i don't know how to
compile,link and run it. I know you have to write a makefile but i have never
done that
before and i've looked in books in the store and there is nothing that i've
seen to show you or describe how to create the makefile, and run the sql
embedded program.
Can you help or point me in the right direction to get some help.
Thanks,
Craig
Is there someone on the list who would be willing to send me an MMJ serial
cable in an effort to get a Vax and a couple Decstations working? For some
reason I can't find any local or even semi-local resources for MMJ cables or
connectors.. Thanks!
-Linc Fessenden.
(BTW, I live in Eastern PA)
