Addressed to: classiccmp(a)classiccmp.org
"Richard A. Cini" <rcini(a)optonline.net>
** Reply to note from "Richard A. Cini" <rcini(a)optonline.net> Sun, 11 Feb 2001 15:05:17 -0500
Rich,
I've got one of those. Mine came with PC-DOS 3.2.
The options are: thermal printer, printer cable (only needed to separate the
printer from the stack of "slices"), internal modem (1200 bps max), CRT
display adapter (functions same as the PC CGA adapter), mono and color
displays with a bracket to hold the monitor above the system, serial/parallel
adapter, auto power adapter, and battery charger. IBM called the external
adapters "function modules", but most people called them "slices".
It came with some special software: an application selector (open apps by
F-key), Notewriter, Schedule (with reminders and alarms), Phone List (with
dialer), Calculator (4 function, 1 memory with M+, M-, MR, MC). Also System
Tools: Sys Profile (sets display options, power options, internal modem
options) and a front-end for several DOS disk and file commands.
Was an interesting machine in its day.
Dick
Well I checked the password for root, and even created a new
account. When Ultrix-32 boots up I get the login box, I
enter the password, the screen blanks and a second latter
the login box is back.
When I tried the new account, (created without password) it
does the same thing. There is no message about wrong
password.
Where should I look next to determine why I keep getting
sent back to the login?
Is there an easy way to get around the GUI login to the
command line?
>
>
> ----------------------------------------------------------------------
>
> Date: Fri, 16 Feb 2001 07:53:54 +0000
> From: Paul Williams <flo(a)rdel.co.uk>
> Subject: Re: VMS 4.4 source code on microfiche
>
> Dan Veeneman wrote:
> >
> > My question is, was DEC in the habit of selling or
> > distributing their OS source code to third parties?
> >
> > If I recall correctly, VMS was written (mostly) in BLISS, but
> > since my microfiche reader is still in storage I can't confirm
> > the contents of these sheets.
>
Here's the word from the OpenVMS FAQ:
http://www.openvms.compaq.com/wizard/openvms_faq.txt
------------------------------------------------------------
VMS8. In what language is OpenVMS written?
OpenVMS is written in a wide variety of languages.
In no particular order, OpenVMS components are implemented using Bliss,
Macro, Ada, PLI, VAX and DEC C, Fortran, UIL, VAX and Alpha SDL, Pascal,
MDL, DEC C++, DCL, Message, and Document. And this is certainly not a
complete list.
However, the rumor is NOT true that an attempt was made
to write pieces of OpenVMS in every supported language so that the
Run-Time Libraries could not be unbundled. (APL, BASIC, COBOL and RPG
are just some of the languages NOT represented!)
There are a large variety of small and not-so-small tools and DCL command
procedures that are used as part of the OpenVMS build, and a source code
control system capable of maintaining over a hundred thousand source
files
across multiple parallel development projects, and overlapping releases.
------------------------------------------------------------
And what you've got are source LISTINGS, not source CODE.
You can't compile them and come up with workable VMS.
I think that I once read that historically, compiling and linking the
newest
version of VMS usually takes a full weekend on the fastest machine
available.
==============================
William W. Webb, EDS, c/o USPS CMF/OSS/MS
4924 Green Road Raleigh, NC 27616 919 874 3043
> The company I work for used to get these, so I have a box of the
> same
> fiches. I don't think we ever _used_ them, though.
>
> My main use for it has been to extract the parsing tables for DSR
> (Digital Standard Runoff), in order to write a program to accurately
> convert Runoff documents to HTML.
>
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>252KB/minute. What is the audio length of a vinyl? I'm not sure, but if
>we make a nice round 60 minute, then we're looking at about 15meg.
assume 30minutes a side is the high end.
>
>duplex. LProms would be a read-only system. Also, the figure of 33300bps
>is based on a modem audio resolution of 2400baud. I don't know the audio
300 baud was hard to do! bandwidth extends to in excess of 15khz but,
the signal to noise level is poor.
>Next up, we look at the modulation/demodulation to use. We'll want a
>compression that takes best advantage of the medium. (I suspect v.42 is
>not it!). Lastly, LP's are stereo - so that either immediately doubles
>our capacity (assuming L and R can be kept 100% independant. If they
can't
>be guaranteed to be kept seperate, then I'm sure capacity could still be
>increased by using L and R as checksums against each other or something
;)
No do able as L & R signals are sum and differenced running around
25-30db
under best conditions. So there will always be some of the other channel
present in the other.
>Problems with LProms are quality of reading - you run a very real risk
>of bitrot if your needle is of poor quality. Also, you'll need some
>way to sync the end of sideA with the start of sideB - there is some
>data loss there. (this could probably be kept to a minimum by using the
>leadin/leadout areas :)
Stylus is a small part of the story, the Vinyl wears, deforms from actual
use, and pressing errors. Leadin/out are not a real factor compared to
the actual cuts.
Records suffer from:
Wow, slow variations in speed.
Flutter, fast variation in speed
Noise, both hiss and pop
distortion both in phase and waveform.
These vary from pressing to pressing and decay with use of the
master. The quality of the base is important (hiss and pop noise).
Also the acutal recording and transscription process prior to cutting
the master can introduce artifacts.
I still have a rather extensive collection of records from the pre-Altair
era and have invested in keeping my Yamaha running as it can.
You had to be very careful to keep a some 30+ year old copy of
Iron Butterfly listenable.
>So, did I have an answer in all that? I'm pretty sure you'd get 15meg
on
>a vinyl easily, and could quadruple that figure with a bit of effort :)
With modern DSP technology better is possible but there are far newer
technologies that are proven.
Allison
>I seem to recall way back when seeing magazines with "floppy" plastic
>records in them that you'd play into your computers tape jack to load
the
>software. ISTR something for the TRS-80 Model I and the KIM-1....
It was tried by Interface Age, Robert Uterwick's (SP?) Floppy rom was
a 6800 based basic and there was an 8080 accounting package. They
relied on the then standard or easily assembled Kansas city standard
(300 baud redundant FM) as the modulation and then applied the "tape
File" standards appropriate to the cpu/monitor in question. They were
33-1/3rpm small diameter formats (sound sheets).
Allison
A) Stop everything and run over to
http://www.thebattles.net/sol20/solace/solace.html and download Jim Battle's
newest update to the best emulator in the world. This guy is amazing! Now
you play and record virtual cassette tapes on your emulated SOL. It's the
next best thing to having a non-emulated Sol - <g>!
B) I finally found a Votrax Type n' Talk after a search of several months
(and refusal to overpay on eBay), but when I received it today, I found that
it lacks the power supply - a cute little thing with a 5-pin DIN plug
supplying 26 VAC, 180 ma on pins 1 and 3, 20 V DC 50 ma on pin 2 and pin 4
is 0 volt reference. Not exactly something I can whip up in a hurry.,
Sooo... does anyone have an "extra" unit they would like to trade - either
the power supply or both pieces. And if so, what might you be looking for?
Thanks.
Bob Stek
Saver of Lost Sols
Fellow collectors,
It gives me great pleasure to let you know that the first meeting
of computer collectors in The Netherlands was a great success.
We have our own mailing list in the Dutch language, cvml(a)egroups.com,
and on this list the plan grew for the members to actually meet in
person and bring some nice computers to show to fellow collectors and
tell stories about them. A venue was found in Rotterdam and last
saturday it all happened. Not too many people visited, but those that
did had a great time, and in about half a year another meeting will
be held. Pictures of the first meeting can be seen at
http://home.iae.nl/users/pb0aia/cm/cvml/index.html
and
http://www.xs4all.nl/~rimmer/cvml/meeting_index.html
Kees.
No, I wasn't saying it *used* nubus, only that it uses a similar kind of
connector, sorry for the confusion. I highly doubt it uses nubus.
Will J
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> This is a common 'stock fault' with these units, and seems to
always be
I was hoping that was the case :-)
Seems like a lot of 80's display hardware have common ways of failing.
> caused by bad contacts at the horizontal hold preset. I've lost
count of
> the number I have fixed by the following procedure...
yep - that was exactly the problem - I found that out more by accident than
anything before reading your reply :)
I pulled the case off and just went to tweak the horizontal hold pot to see
what effect it had on the display (to try to track down the fault a bit
further) and the display choked into life as soon as I touched it.
now I just need to make a suitable comms lead, I seem to have lost all of
mine :)
cheers
Jules
--
>contraption which recorded on
Punch Cards
Spools of Wire
Magnetized Cardboard
Photosensitive Film
Clear plastic disks
Audio Cassettes
VHS Cassettes
encased 1/2 size CDR's
...Fluidic Logic Gates
. . . .
I think this thread mainly illustrates (with great
examples, THANKS) the difference between what's feasible
and what's marketable. Let's face it, a good engineer
can get anything to do anything else but when its'
considered a success is when a million or more people
can do it with a single push of a button. (And for less
than a weeks salary).
John A.
(check out the price of those VidLP's Yike)
