Alright.. I've tried every incantation I could to get off this list
including:
1) unsubscribe classiccmp opalka(a)intdata.com
2) unsubscribe classiccmp opalka(a)notes.intdata.com
3) unsubscribe classiccmp bill.opalka(a)intdata.com
4) unsubscirbe classiccmp bill.opalka(a)notes.intdata.com
5) unsubscribe classiccmp Bill.Opalka(a)notest.intdata.com
6) Sending mail to the list manager (@notest.intdata.com
bcw(a)u.washington.edu )
Can someone help me get off this list..........
Thanks,
/Bill
<Yeah, I remember bubble memory. It seems like Fujitsu actually got
<to work halfway decent. Despite the cost and speed limitations,
Intel manufactured 1mb and 4mb parts with control chips. The BPK72
was the 1mb part on a card with all the control to make a 128k storage
system. I have two, bought in '85. they still owrk and have proven quite
rugged too.
<instrument controllers. SLow, expensive, but for awhile it was about
<all you could use for mass storage in certain hostile environments.
I used them in cpm based systems and they are faster than floppy on
average. The byte transfer rate is slower but the seek time is real
fast. They work well. AS to cost they compared well with floppy
systems of the time considering they were able to take shock and
vibration.
Allison
At 11:01 PM 1/13/98 -0500, you wrote:
>You shouldn't have oughta done that. ;-) Calling me microspooge is
>frighten words. Oh heavens the lost data.
I'm sorry! It won't happen again! For penance, I will not use my Portfolio
(Dip-DOS, not MS-DOS) for 24 hours, and no Freecell for 3 days. 8^)
Hail Gary, full of genius, the code is with thee. Blessed art though among
programmers, and blessed is the fruit of thy labor, CP/M. Holy Gary, father
of CP/M, pray for us sinners, now and at the hour of our disk crash.
--------------------------------------------------------------------- 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.crl.com/~sinasohn/
At 09:53 PM 1/13/98 -0600, you wrote:
>>btw, there was another PPC640 that sold on eBay this weekend, but it was
>>complete, with power supplies, software, and a really neat case. I didn't
>>get it, though. 8^(
>
>How much did it go for? Just curious.
$100
if I were a rich man...
--------------------------------------------------------------------- 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.crl.com/~sinasohn/
At 09:42 PM 1/13/98 -0600, you wrote:
>I have the complete set on mine: software neat case, manual (in French
And where do you live? 8^)
>:) )and Power supply (220v :( )I would be interested in finding a US power
>supply as I don't think the machine can run for very long on the 10 alkaline
>bateries.
Me too. I would think a generic ps from Radio Shack would work, but since I
haven't tried that I dunno...
--------------------------------------------------------------------- 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.crl.com/~sinasohn/
the best compact computer for this would be a PS/2E (9533) it doesnt apply to
this list because the announce date was ~1993 but its small, quiet (no fan),
and has 4 pcmcia card slots. even though its only a 486slc, its quite snappy.
i bought two for $30 and fixed them both.
david
In a message dated 98-01-14 13:44:22 EST, you write:
<< My main problem with PS/2's is cost and scarcity of MCA cards and memory
and
such.
What I'd really like to find is an *affordable* compact
notebook/laptop/lunchbox with 1.5 (i.e., for a thick card) ISA expansion
slots to use as my voicemail machine. I thought I had that in my Altima 2,
but the *%$#@^% voicemail card has some components that stick out too far to
fit. My current machine ('286 desktop + composite monitor) is too noisy and
sucks up too much juice. (Oh, and battery power would be nice for when the
fuse blows.) >>
First of all, let me apologize to anyone receiving this email who
considers it garbage.
Have several items related to the IMSAI computer for sale:
Vector Graphic, Inc. [Rev 3] PROM/RAM BOARD w/cable and connector/pins.
MAY 1976 IMSAI Complete Product Catalog - "The Complete Microcomputer
System". Original price $1
IMSAI Domestic Price List for November '77
Invoice dated '78 (from IMSAI).
Comes in what I assume is the original box, but this cannot be
verified. Card has never been used and accessory items are still in
original packaging.
If you are interested, please make an offer an all items. Best offer by
2/1/98. JPEG's can be sent upon request, and I will try to answer any
questions.
Thanks
Andrew
By the way, although I don't collect computers, I might trade for an
interesting old Apple or Atari.
>some of the 98xx
> calculator/workstations, but I think those were either programmed like
> calculators or in HPL, not BASIC.
I just shipped off an HP 9831, which ran BASIC.
manney
ps Hey, Joe -- I still haven't received the $10,000 check for it yet.
Remember, I'm selling at original HP prices! <g>
At 11:21 AM 1/14/98 -0500, you wrote:
>A type of non-volatile memory composed of a thin layer of material that can
>be easily magnetized in only one direction. When a magnetic field is
>applied to circular area of this substance that is not magnetized in the
>same direction, the area is reduced to a smaller circle, or bubble.
One of the differences with bubble memory is that it has to be accessed in
a serial / sequential manner -- on a 1 megabit bubble device you cycle thru
all the bits, then grab a certain set of bytes from the device according to
an index or FAT. Tho the devices are rather quick, they do not have the
speed of hard drives. I believe you could put 8 devices in parallel, and
that would increase your access 8x, tho.
> It was once widely believed that bubble memory would become one of the
>leading memory technologies, but these promises have not been fulfilled.
>Other non-volatile memory types, such as EEPROM, are both faster and less
>expensive than bubble memory.
The cost of manufacturing bubble memories did not drop in price much unlike
other technologies of the day.
You are correct, tho. Bubble memories are completely non-volotile and
require no power to preserve their memory -- I have no clue as to the
bit-rot spec's, tho. (A decent magnet will squanch your data.)
I have an article in Rainbow magazine on how to build a 128K byte device as
a near-line non-volotile storage unit for the CoCo -- designed by that
great master Dennis Bathory Kitsz. (apologies to Dennis if I misspelled.)
HTH,
Roger "Merch" Merchberger
--
Roger Merchberger | Why does Hershey's put nutritional
Programmer, NorthernWay | information on their candy bar wrappers
zmerch(a)northernway.net | when there's no nutritional value within?
R,
I'm also sending this to the classic computer mail list since several
people there have asked abou this stuff.
At 06:54 PM 1/13/98 -0500, you wrote:
>Joe:
>
> I found another guy that has an ISIS-II system, but it's centered on the
>MCS-48/51 series. I was really more curious as to what the thing was used
>for.
I'm not sure, it's not in any of my Intel catalogs but I think it's
specificly for developing software and hardware for the 8048 CPU.
>
> The stuff that the guy has is extensive.
Yes, Intel made lots of this stuff. At least two different Intellec CPU
units, several different ICE (In Circuit Emulators), several different disk
drive units, one or two different EPROM burners, additional memeory units,
a bread board unit and more. My OLD catalog shows 42 different hardware
pieces. AND they were a number of different assemblers and high level
programming languages available. They called it "Intellec". Most of the
units can be used with any Intellec system and for any target CPU.
If you have any specific questions I will try to answer them.
Joe
