>Of all the drives I could find in the store, only 3 worked. but now
>Mr.StoreGuy has a pile of "Tested-BAD" drives! (Well good for steppermotors
>anyway)
Ah, but the store owner now had one more thing in the deal, an education,
don't let anybody test your stuff at a fixed price. Its the kind of mistake
easy for a basically honest person to make. OTOH Apple II drives are pretty
hard to break,
---
I still have a broken one, can I fix it myself? the only thing I
know is when I put a diskette in and try to read it it goes rattttatt and gets an error... :^(
----
how did you test them?
-----
I connected them to my apple II and put in a known good diskette, swapping the diskette to the other drive to verify it was still known good... :^)
-----
Could it have just been
incompatibility? Thats the second risk, customer tests your stuff
pronounces it bad, but later on it turns out they (generic they, not you)
didn't know beans and the stuff is just fine (which of course you find out
after customer B buys it for parts and retests later).
On Jun 13, 9:35, John Allain wrote:
> This was very amusing thanks.
>
> I once overheard some internal guys
> (another company, BTW) talking about SGI desktops.
> Maybe you heard this one? After the success of
> the SGI blue tower "Indigo" they came out with a
> desktop "Indy". It was noticeably slower, though
> making it: "The Indy, an Indigo without the go"
It's a nice story, but unfortunately, only a story. I should know: I have
three Indigos and two Indys of my own, and manage about a hundred more at
work. An (blue) Indy is faster than an (purple) Indigo.
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
On Mon, 12 Jun 2000 r. 'bear' stricklin wrote:
> > "r. 'bear' stricklin" <red(a)bears.org> wrote:
> > > I'm pretty sure it's just a ROM limitation, as the SE/30 uses the exact
> > > same floppy drive as the later IIci and others which can't read or write
> > > the older GCR-type disks.
> >
> > Huh? My IIci reads and writes 400K and 800K GCR disks with no problems
> > whatsoever. As does my SE/30.
>
> Huh, indeed. I must have misremembered the list. PowerMacs certainly won't
> do it, and I was pretty sure that most, if not all, of the '90s Macs
> wouldn't either.
I don't know where you got this misinformation from, but Power Macs do support
800K floppies (apart from recent models which don't have a floppy drive and
perhaps the G3 models).
Every Mac previous to the Power Macs also supports 800K floppies (apart from
the very earliest ones which only had 400K drives).
See the "Power Macintosh 7600 Series: Technical Specifications" at
http://til.info.apple.com/techinfo.nsf/artnum/n19545
Other Technical Specifications documents on the TIL site for other Power Mac
series computers also contain this text:
* Internal Apple SuperDrive floppy disk drive
-- Accepts high-density 1.4MB disks and 800K disks
-- Reads, writes, and formats Macintosh, Windows, MS-DOS, OS/2, and ProDOS
disks
Also see http://til.info.apple.com/techinfo.nsf/artnum/n19545
This has a brief explanation on why access to 800K floppies is slower under
newer Mac models.
-- Mark
Ran across a fellow a while back who had a DG MicroNova available. Don't
know if he's still got it, but you can try:
arnies(a)ix.netcom.com
Thanks much.
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Owner and head honcho, Blue Feather Technologies
http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com
Amateur Radio: WD6EOS since Dec. '77
"Our science can only describe an object, event, or living thing in our
own human terms. It cannot, in any way, define any of them..."
"Jay West" wrote:
>
> > In the back cage there are three jumper cards
>
> Jumper cards continue the interrupt priority chain in the backplane. If your
> OS is interrupt driven, you need the jumpers for open slots. If your OS
> isn't interrupt driven, you don't need these.
hmmm.... then it is possible that some cards are missing because
there are intermediate empty slots; here's the back cage
configuration:
Slot
# card description
-----------------------
25 -empty-
24 BACI 12966A
23 Jumper
22 Jumper
21 BACI 12966A
20 BACI 12966A
17 BACI 12966A (note: no slots are labeled 19 or 18)
16 Jumper
15 Jumper
14 -empty-
13 -empty-
12 DISK INTFC 12821A (HPIB; why a second one?)
11 DISK INTFC 12821A (HPIB)
10 TIMEBASE GEN
I was able to open the front panel (thanks, Eric) and found the
following
there:
Slot
# card description
-----------------------
DCPC D.C.P.C. | Ribbon connector from front fingerpad to bckpln
111 MEMORY PROTECT 22-7931
112 MEM 22-2127
113 -empty-
114 -empty-
. .
. .
120 -empty-
121 256KW HSM 12749M | these three cards have their left front fingerpads
122 256KW HSM 12749M | joined by ribbon cable. Right front fingerpads
123 MEM CNTLR 2102E | not connected.
And yes, the big board underneath everything is the mainboard with
not a piggyback but a "piggytummy" smaller board attached to it.
> Most typically in this system, the OS was genned for each card in a certain
> slot. If the card positions have been changed the OS generally won't boot.
> If you moved the cards, you have to regen the OS. Most likely the system
> console was the baci board that was lowest in the backplane, as this one
> would have the highest priority. If it was running RTE, ISTR there is way to
> boot the system that tells it that the configuration has changed and where
> the console and disk are. If this matches your situation, drop me an email
> and I'll look it up for you.
I did not move the cards around, but again, maybe some cards are
missing.
I don't know what OS the system was running.
I guess that the first thing that I have to do now that I tested the
power supply and verified that the machine (seems to) turn on,
is to build a serial console cable for this. I have several cables
that will fit the BACI boards, but the connectors at the other
end have been cut off. Does anybody have the pin out for the
finger pads in the front of the BACI boards?
--
Carlos Murillo-Sanchez email: cem14(a)cornell.edu
428 Phillips Hall, Electrical Engineering Department
Cornell University, Ithaca, NY 14853
I picked up one of these today but some of the files on the hard drive
are messed up. Can someone send me the Command.Com file for MS-DOS 2.11A?
Also how do you get one of these to boot from the floppy drive and not the
hard drive?
Joe
--- Douglas Quebbeman <dhquebbeman(a)theestopinalgroup.com> wrote:
> > > I look foward to your answers, and if I'm wrong or am overlooking
> > > something, I'd very much like to know about it.
> >
> > Dude, one word: TANG!
>
> I dittoed a Davis rant the other day, today I gotta nix one.
>
> Sellam, let me second your motion with- Teflon!
I wasn't going to chime in, but now that we are benignly listing 1960s
technology brought to the fore by the space race, WD-40. The contractor
who was producing it for NASA discovered its potential when employees were
taking the product for use at home.
-ethan
=====
Even though my old e-mail address is no longer going to
vanish, please note my new public address: erd(a)iname.com
The original webpage address is still going away. The
permanent home is: http://penguincentral.com/
See http://ohio.voyager.net/ for details.
__________________________________________________
Do You Yahoo!?
Yahoo! Photos -- now, 100 FREE prints!
http://photos.yahoo.com
Hey Tony:
> ARD : 'If any part is missing or damaged then I intend to return it here
> and now for a cash refund under the terms of the Sale of Goods Act.
This is really off-topic for the list so feel free to reply directly to my
e-mail address -- I'd like to know your (and the group's) opinion:
What is this "Sale of Goods Act?" (I knew the UK paradise had to come with a
catch) Here in Florida a merchant doesn't have to give a refund, period.
Please advise.
Glen
0/0
I just placed a low-hours H19 terminal, equipped with a Northwest Digital
Systems "Graphics Plus" option (Tek 4010 emulation), up on Haggle (I refuse
to deal with E-pay!) for those who may be interested in such.
It's at: http://www.haggle.com/cgi/getitem.cgi?id=202337688
Thanks for looking.
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Owner and head honcho, Blue Feather Technologies
http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com
Amateur Radio: WD6EOS since Dec. '77
"Our science can only describe an object, event, or living thing in our
own human terms. It cannot, in any way, define any of them..."
Went to Chicago to visit relatives over the weekend but couldn't find any
decent used computer stores. Maybe they are in the suburbs? Highlight of the
trip was I stayed in a hotel, room 1337. ph33r hax0rs!
Went to the local salvation army and picked up an Atari 850 peripherial
expansion box, a Disney Sound Sources paralell port sound box (Funny) a few
assorted cables, and most importantly, a book on various expansion bussees
circa 1983. Covers S-100, Tandy, Multibus, TI/99, Apple II./III. Interesting
stuff, and cool pictures of wacky niche machines (The Heathkit LSI-11
Computer, The KIM-1) Happy Hunting!