On 4 Jun 98 at 9:07, SUPRDAVE(a)aol.com wrote:
> they were all 32bit from the get-go, but i think the memory adressing was
> 24bit which means my IIcx can only goto 16meg maximum. there was also some
> issue about some applications wouldnt run because of the 24-32 bit
> discrepancy, and a program called mode32 was created to circumvent the issue.
> i got my copy of mode32 from connectix, who presumably made it.
The IIX and IICX and SE/30 ROMs contained the 24bit addressing code.
For System 7.0 --> 7.5.5, Connectix released the Mode 32 fix which
permits the Macs with "dirty ROMs" to successfully address up to 128M
of physical RAM and to use virtual memory as well.
For System 6, you were stuck with 8M physical RAM on these machines.
Apple did not support virtual memory at that time, but Connectix sold
a VM kit. The kit also supported a Mac II fitted with a PMMU.
Can anyone clarify the memory situation for A/UX?
Phil
**************************************************************
Phil Beesley -- Computer Officer -- Distributed Systems Suppport
University of Leicester
Tel (0)116 252-2231
E-Mail pb14(a)le.ac.uk
<"The federal government is in dire need of technical resources to fix th
<Year 2000 problem-so dire, in fact, that there is speculation about a
<possible draft of Cobol programmers."
<
<
<I wonder what bootcamp is like?
Confusing, oblique, boring, overated and longwinded. Other than that
likely I'd be the first draft with a minimum age! ;)
Allison
So then, I'm a C-64 either way. Kinda discomforting. Maybe I have one
of those upgrade cards. I hope I'm running GEOS ;)
>> A silly suggestion. Computer-astrology. Your way of thinking is
>> determined by the computers that were in production at the time of
your
>> birth. No, I don't believe it either :-)
>
>More likely, your thinking is determined by the computer which you
first
>heavily used.
>
>--
> _______ KB7PWD @ KC7Y.AZ.US.NOAM
ecloud(a)goodnet.com
> (_ | |_) Shawn T. Rutledge on the web:
http://www.goodnet.com/~ecloud
> __) | |
\__________________________________________________________________
>* VRML * electronics * Gravis Ultrasound * Khoros * emusic * X window *
>
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Wait, are ST-506 drives the ones with a wide ribbon connector
and a narrow one? If so, they are pretty common here. I have a bunch
in my desk drawer. BTW, why is MFM so much more popular than RLL?
>> > Okay gang. I just can't take it, I gotta help this guy become an
atarian. :)
>> > Okay, this is what; you need. You need an ATSCI to SCSI converter
>>
>> OK, but what to do with the system that takes an ST-506 interface
drive? I just
>
>This is a problem that I've been thinking about rather a lot - not for
>Ataris, but for old workstations (PERQ, Xerox, etc) that have an ST506
>controller built in to the I/O board.
>
>I've been thinking of designing an interface that'll link a SCSI or IDE
>drive to an ST506 controller. The problem is I'd have to know quite a
bit
>about the low-level format of the drive so that I could simulate it on
>the interface. And that data is not easy to come by.
>
>But I am worried that ST506 drives are becoming less common every year,
>and there's no easy way to repair them.
>
>-tony
>
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Hi there!
Just a word to say that you can go and see my 8-bits devoted site. It's
called the 8-bits Rendez-Vous! Actually there's only 50 computers
featured but I'm adding a new one nearly every-day. So go there to see
if you like and come-back often. There is a lot of infos and pictures
and I also present my own collection.
Please give me feedback!
8-Bits Rendez-Vous
http://perso.club-internet.fr/oboissea/
(best viewed with last versions of IE and Netscape)
BOISSEAU Olivier
oboissea(a)club-internet.fr
At 08:56 AM 6/4/98 -0700, you wrote:
>>Year 2000 problem-so dire, in fact, that there is speculation about a
>>possible draft of Cobol programmers."
>
>draft agency would have to be Y2K compliant so they can track down and
>punish draft dodgers...
No need to skip the country... Just tell 'em you were born in *18xx*, not
19xx, so you're too old. "Wish I could help ya with these new fangled
computerthings, young feller, but if you ever need a good musket loader,
you give me a call, y'hear?"
--------------------------------------------------------------------- O-
Uncle Roger "There is pleasure pure in being mad
roger(a)sinasohn.com that none but madmen know."
Roger Louis Sinasohn & Associates
San Francisco, California http://www.sinasohn.com/
<I have wanted to ask this for a while. What is the actual risk of me
<blowing myself up if I service a machine with a built-in monitor?
<An example is the Mac SE. Is there any risk involved (as long as I
<don't short capacitors with my fingers) in taking it apart? What are
if your careful and aquaint yourself with where the HV is...and make
very sure you don't put your fingers there you should be ok. Also
remember that 17,000 volts can jump a good distance and find you
fingers.
To make a point though... I got blasted fixing a VR201 monochrome monitor
yesterday. So you know this monitor is powered off 12v in the pro350.
Well, I kept clear of the flyback and crt anode and got nailed by 70-100v
down on the logic board. I wasn't watching for the focus cap having
anything big voltage wise on it. Many monitors have points other than
the CRT where higher than supply voltaged can be found and some can really
sting!
<the parts I should watch out for? How long do they hold a charge?
<Could I discharge them?
How long... amazingly long and should be treated as charged until proven
otherwise. You can discharge them, make sure the "ground" you use is
a real one and simply not the case or some other floating point.
Allison
From: Tony Duell <ard(a)p850ug1.demon.co.uk>
>
>The stories I mentioend didn't refer to the BCM, but to a couple of major
>collections in the UK.
Where are there any decent public displays in the UK. There doesn't seem to
be much at the science museum in London.
Regards
Pete
On 3 Jun 98 at 21:42, Frank McConnell wrote:
> "Lawrence Walker" <lwalker(a)mail.interlog.com> wrote:
> > One of my recent finds was a Radius Full Page monitor. I has a 9pin Dshell
> > F video socket. It's like a 14 " set on it's side. Does anyone have any info on
> > this beast ? Drivers, what it was used with, etc.
>
> Mac. I've seen one on what I think was a IIcx (maybe IIci), and
> another on on my mother's Mac Plus. The IIc[xi] interface is a NuBus
> card. The Plus interface is a daughterboard contrivance that sits
> atop the 68000 on the Plus mainboard (and hooks up with springs to a
> couple of other signals); it brings the video out through the security
> slot on the back of the Plus.
Thanks for the description of the Plus contrivance, Frank. ISTR that
the Plus Full Page Display (FPD) was beige to match the original Mac
colours. That would make the later ones grey to match the later
SE/Mac II family colours.
Phil
**************************************************************
Phil Beesley -- Computer Officer -- Distributed Systems Suppport
University of Leicester
Tel (0)116 252-2231
E-Mail pb14(a)le.ac.uk
Since i'm lazy and dont have an easy way to do it, I need ataridos 2.5 or 3.0
on a 5.25 disk. i can provide blank floppies and any money and postage that
might be needed in order to do so. can anyone help?
david
