Mike Allison wrote:
> SHELL=
> or
> AUTOEXEC.BAT line to execute the program
> or
> REXX script
> or
> A program which bootstraps the other program.
An AUTOEXEC.BAT line to execute the program does not let you omit
COMMAND.COM, which is what was asked for. SHELL= does.
Roger Ivie
ivie(a)cc.usu.edu
> Most of the questions ELKS must now answer, as a UNIX clone, have
> been answered in CPM as a stand alone solution. Plus there's a boat
> load of free programs.
Bear in mind that most of the free programs are written in 8080 or
Z80 assembler; they're not going to move to something else readily, if
at all.
> BTW - Roger,
> Where are you at? I'm in Ogden...
Logan.
> You're not related to Joni are you?
The name doesn't ring a bell. My immediate family is from the Duchesne
area. I have a half-brother living in the Ogden area (Gerry Ivie).
> (Everyone in Utah is related ; - } )
Definitely the case for us bearing the name 'Ivie'. AFAIK, all the 'Ivie's
in the US (including the 'Ivey's; there was some confusion about the spelling
a while ago) are related.
Roger Ivie
ivie(a)cc.usu.edu
> What would be nice is an ELKS-like thing for DOS, so that one could
> stick in a floppy disk, and it would boot into any program that you
> choose, without Command.Com.
You can already do this using SHELL= in CONFIG.SYS. I did this many
years ago (more than 10, OK? (Have I really been puting up with MS-DOS that
long?)) to make a diskette that booted directly into WordStar.
Roger Ivie
ivie(a)cc.usu.edu
> I think Linux is the best choice to enable latter day retrocomputing.
> Check out the ELKS project to put Linux on machines with very limited
> resources:
On the other hand, CP/M-68K is available from http://cdl.uta.edu/cpm/.
A lot of it is written in C; with some work, it can be modernized and
updated. What could be more retro than building the ability to port
CP/M to anything with a C compiler?
Roger Ivie
ivie(a)cc.usu.edu
From: Aaron Christopher Finney <A_Finney(a)wfi-inc.com>
Subject: Re: Mac hi-res monitor
>While I'm here, I am desperately searching for books on 6502 Assembly,
>especially....
[snip]
>"6502 Assembly Language Programming" by Lance Leventhal
>Osborne/McGraw-Hill
You would also want to look for O/MGH's "6502 Assembly Language
Subroutines" by Lance Leventhall as well as Winththrop Saville. The
first section contains an excellent overview of the 6502 command set,
it's quirks (such as not placing indirect reference commands near page
boundries etc. Not to mention the rest with routines for interger and
floating point math, string manipulation, sorting, etc.) The routines
are fairly generic so it would not be hard to implement on any 6502
machine.
I'd consider that and 6502 Assembly Language Programming well worth
the effort to find.
Larry Anderson
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From: "Lawrence Walker" <lwalker(a)mail.interlog.com>
Subject: Re: TRS-80 Questions
On 24 Feb 98 at 21:27, Tony Duell wrote:
>> > 2. Included with a TRS CoCo 1 I picked up last summer was
>> > an adapter plugged into the cass.port. a label "TotalCommunications"
>> > on one side and "Telelearning" on the other. Into this was plugged
>> > another M/M adapter labelled " RS232 Gender Changer" Was this for
>> > hooking up a fdd and/or modem ?
>>
>> My guess, and it's only a guess is that this is some kind of kludge to
>> allow you to CLOAD (and maybe CSAVE) programs to/from an RS232 device. It
>> may have been part of one of those classroom 'networks' where the teacher
>> loaded a program onto his machine, all the pupils typed CLOAD, the
>> teacher typed CSAVE and the program was downloaded onto all the pupils'
>> machines.
>>
> Now that seems like it has possibilities . And it takes up so
>little room !
It is more than likely a modem or parts to one. On the Commodore 64
the Total Telecommunications Modems are very well known (because they
were VERY cheap and good quality Commodore 1650 clone direct-connect
auto-answer 300 baud modem) I ran my BBS on one for years..
My assumtion is that the Telelearning project (which, from my book,
looks like a Compuserve, Q-Link or similar on-line network geared for
education) failed miserably and all the modem/software packs were sold
at pennies to the dollar.
I thought there were just Total Telecomm modems out there.... I
wonder what other computers that made modems for.
Larry Anderson
--
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Visit our web page at: http://www.goldrush.com/~foxnhare/
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>> Better question is where they FIND them, I have plenty of room and my wife
is
>> mostly understanding. Well, in the way that an antelope understands linear
>> algebra anyway.
I recently tried advertising in a national computer "for sale" magazine.
This worked very well, but I don't know if it would work so well outside
of Australia. Huge numbers of offers, some of which were really good -
but they came from all over Australia, and many were either XTs or other
boring computers, or situations where people really belived they had a
wonderful collectors items, and thus asked 3 or 4 times what I considered
their worth.
Adam.
Doug,
I used to repair tempested Zenith Inteq 248 machines in the late
1980's. As mentioned earlier, the 16 bit boards were all isolated in
the chassis and had cables run through a dead space to the external
connectors. All boards have rfi suppression coils built in and of
course there is a rfi suppression braid gasket running the entire
circumference of the main system unit, if I recall there were about
thirty-six to forty screws holding the cover on. The keyboard was
tempested as well as the color monitor, both of these being very heavy
in comparison to a untempested Z-248 system. I ran service calls out
at the Vint Hill Farms Army base (near Warrenton, Virginia) to service
these and always found it strange to have a tempested unit in a
shielded building in a bank vault. Yes they used Syquest 10MB
removeable disks. Also, whenever we had one of these units in our shop
for repair (off base), prior to it being placed back in service,
security would use an rfi sniffer prior to acceptance to ensure there
was no leakage. I found a complete Zenith Inteq 248 with tempested
color monitor and keyboard at a church sale a few years ago. I
regretfully broke the rfi qa seal on the system unit and removed the
cmos battery (AA lithium) as I was afraid it would leak and damage the
system unit as I was tucking it away (until I find space to display
it). When I broke the seal, I documented the date and reason why and
placed this note inside the system unit so as to document its history.
The system booted fine. Built like a tank.
Marty Mintzell
______________________________ Reply Separator
_________________________________
Subject: Re: Zenith Inteq
Author: classiccmp(a)u.washington.edu at internet
Date: 2/26/98 11:08 PM
Doug Yowza wrote:
> On Thu, 26 Feb 1998, Mike Allison wrote:
>
> > My experience with these "TEMPEST" machines is that it's usually best to
> > swap out all the parts (great difficulty at times) and use the AT parts
> > in another box. The box is heavy and, as you stated, designed to
> > firewall the parts from the actual physical ports. There are good parts
> > on them however, disk drives, scsi connectors, video cards, mother
> > boards, memboards, that would work nice in another box and be easier
> > (read that cheaper) to mail.
"TEMPEST" standards are there to afford proper sheilding to prevent
radiations/emmisions fromt he machine when it's being used for security
information. The thicker covers, ground braids and multiple screws in the
covers make it better sealed and there should be no emmisions over 12 inches
from the machine, or none at all ideally. Other than the power supply being a
class A type, the rest is normal but may have been refitted with a shielded
faceplate.
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RB Custom Services / Rt. 1 Box 62E / Harned, KY USA 40144
Phone: (502) 756-1749 / Data/Fax:(502) 756-6991
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* Parts/Service/Upgrades and more for MOST Computers*
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From: Russ Blakeman <rhblake(a)bbtel.com>
To: "Discussion re-collecting of classic computers"
<classiccmp(a)u.washington.edu>
Subject: Re: Zenith Inteq
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I'm lucky, in that I sit in a nice, big computer dungeon at work that the
bosses seem to not care about much. Either that or they can't tell the
difference between the new Digital NT boxes and the Vaxen.... ;)
At 07:26 AM 2/27/98 -0500, you wrote:
><><< Geez, where do you guys keep all these computers??? >>
>
>4bedrooms and the computer room is the smallest and also my office. That
>limits me to 150sqft or about 1000cuft inside the house. The garage
>is also huge (and resonably warm in the winter) so a fair amount it out
>there too.
>
>< Yeah, it's easier to give up the wife and kids and to keep the
><computers. A lot quieter too.
>
>Forget kids, I am the wife!
>
>Allison
>
>
