3 Mar
2002
3 Mar
'02
8:10 a.m.
Trying to figure out what this one is:
I think it is an Apple built memory board, has two rows of ram chips, 32
total, PLCC custom chip and a 24 pin (rom?) chip at the bafk end of the
board. Number silk screened is 670-0024-A
I'm wondeing if I can just plug and play, or if there is some sort of
software driver to access this memory? any web pages on it???
Gary Hildebrand
St. Joseph, MO
3 Mar
3 Mar
8:27 a.m.
On Sun, 3 Mar 2002, Gary Hildebrand wrote:
Trying to figure out what this one is:
I think it is an Apple built memory board, has two rows of ram chips, 32
total, PLCC custom chip and a 24 pin (rom?) chip at the bafk end of the
board. Number silk screened is 670-0024-A
Are you sure it's for the //e? The only memory boards that I know Apple
made were for the //gs (if you don't count the 16K "Language Card" and the
expanded 80 column text card).
I'm wondeing if I can just plug and play, or if
there is some sort of
software driver to access this memory? any web pages on it???
It's most likely plug and play, or else the drivers are built in to ProDOS
or GS/OS to access it. Or the "drivers" are on the firmware.
I have a 1 megabyte AE Ramfactor in my //e that can be programmed in a
very simple way. The memory is basically accessed serially through a
single memory location (or port if you will). There are three registers
where you program the address location you want to access, and then you
read the port to read the byte at that location or write to the port to
write a byte to that location. In either case, the address register is
automatically incremented. A snap to program.
I was able to record 5 minutes of reasonable quality (for the Apple ][ :)
digitized sound into it. I was able to get the whole of Led Zeppelin's
"The Song Remains The Same" recorded on it :)
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
* Old computing resources for business and academia at www.VintageTech.com *
5:08 p.m.
On Sun, 3 Mar 2002 19:27:20 +0000 (UTC), Sellam Ismail wrote:
#On Sun, 3 Mar 2002, Gary Hildebrand wrote:
#
#> Trying to figure out what this one is:
#>
#> I think it is an Apple built memory board, has two rows of ram chips, 32
#> total, PLCC custom chip and a 24 pin (rom?) chip at the bafk end of the
#> board. Number silk screened is 670-0024-A
#
#Are you sure it's for the //e? The only memory boards that I know Apple
#made were for the //gs (if you don't count the 16K "Language Card" and the
#expanded 80 column text card).
Yes, this is for the //e. It is the 1 meg slinky memory board. ProDos will automatically
recognize it as a 1 meg ram disk in whatever slot it is in. Appleworks will also
use it automatically, as will a few other programs.
It is great for file transfers, since there is no delay waiting for a physical drive.
Very useful.
You guys made me pull the top off my //e to check the card. I just couldn't take it
any more.
Louis
10:30 a.m.
On Sun, 3 Mar 2002, Louis Schulman wrote:
Yes, this is for the //e. It is the 1 meg slinky
memory board. ProDos
will automatically recognize it as a 1 meg ram disk in whatever slot it
is in. Appleworks will also use it automatically, as will a few other
programs.
Well then it may well be a Ramfactor, or perhaps a RamWorks.
It is great for file transfers, since there is no
delay waiting for a
physical drive. Very useful.
Yep, I used to use mine to leach warez off the local BBS's and then
unshrink them to disk.
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
* Old computing resources for business and academia at www.VintageTech.com *
4 Mar
4 Mar
11:11 a.m.
On Sun, 3 Mar 2002 21:30:03 +0000 (UTC), Sellam Ismail wrote:
#On Sun, 3 Mar 2002, Louis Schulman wrote:
#
#> Yes, this is for the //e. It is the 1 meg slinky memory board. ProDos
#> will automatically recognize it as a 1 meg ram disk in whatever slot it
#> is in. Appleworks will also use it automatically, as will a few other
#> programs.
#
#Well then it may well be a Ramfactor, or perhaps a RamWorks.
No, No! It is made by Apple, not AE. It is called "A II Memory Expansion",
Apple Computer, c.1985. Now
you made me pull off the top of my //e again. Geez!
Louis
4:39 a.m.
Louis Schulman wrote:
On Sun, 3 Mar 2002 19:27:20 +0000 (UTC), Sellam Ismail wrote:
#On Sun, 3 Mar 2002, Gary Hildebrand wrote:
#
#> Trying to figure out what this one is:
#>
#> I think it is an Apple built memory board, has two rows of ram chips, 32
#> total, PLCC custom chip and a 24 pin (rom?) chip at the bafk end of the
#> board. Number silk screened is 670-0024-A
#
#Are you sure it's for the //e? The only memory boards that I know Apple
#made were for the //gs (if you don't count the 16K "Language Card" and
the
#expanded 80 column text card).
Yes, this is for the //e. It is the 1 meg slinky memory board. ProDos will
automatically recognize it as a 1 meg ram disk in whatever slot it is in. Appleworks will
also
use it automatically, as will a few other programs.
It is great for file transfers, since there is no delay waiting for a physical drive.
Very useful.
You guys made me pull the top off my //e to check the card. I just couldn't take it
any more.
Louis
Well that sounds right . . . but it is full of 4164 chips, and a couple
of 41256's I guesstimated that it was 256k. If it were 1 meg it would
be all 256k x 1 chips.
I'll do some research and see exactly what is going on here.
Gary HIldebrand, Apple IIe newbie
St. Joseph, MO
3 Mar
3 Mar
5:32 p.m.
I've got an add-on memory board for the Apple ///, but that certainly doesn't
count where the IIe is concerned. That one used one row of normal 4116's and
two rows of the wierd 18-pin parts with two 4116 dice on the same substrate,
bearing an Apple logo, BTW. The one I've got, is modified in terms of the
connectors, as I used it in another application, way back when, and the
connectors didn't suit me. It does count as another Apple memory board,
though.
Could someone address that business with the 80-column aspect? I've had
several of these around and never yet had one that didn't have the key that
switched from 40 to 80-column mode. Was there an earlier version that
required this as an add-on?
Dick
----- Original Message -----
From: "Sellam Ismail" <foo(a)siconic.com>
To: "Classic computing mailing list" <classiccmp(a)classiccmp.org>
Sent: Sunday, March 03, 2002 12:27 PM
Subject: Re: Apple IIe memory board
On Sun, 3 Mar 2002, Gary Hildebrand wrote:
Festival
Trying to figure out what this one is:
I think it is an Apple built memory board, has two rows of ram chips, 32
total, PLCC custom chip and a 24 pin (rom?) chip at the bafk end of the
board. Number silk screened is 670-0024-A
Are you sure it's for the //e? The only memory boards that I know Apple
made were for the //gs (if you don't count the 16K "Language Card" and the
expanded 80 column text card).
I'm wondeing if I can just plug and play, or
if there is some sort of
software driver to access this memory? any web pages on it???
It's most likely plug and play, or else the drivers are built in to ProDOS
or GS/OS to access it. Or the "drivers" are on the firmware.
I have a 1 megabyte AE Ramfactor in my //e that can be programmed in a
very simple way. The memory is basically accessed serially through a
single memory location (or port if you will). There are three registers
where you program the address location you want to access, and then you
read the port to read the byte at that location or write to the port to
write a byte to that location. In either case, the address register is
automatically incremented. A snap to program.
I was able to record 5 minutes of reasonable quality (for the Apple ][ :)
digitized sound into it. I was able to get the whole of Led Zeppelin's
"The Song Remains The Same" recorded on it :)
Sellam Ismail Vintage Computer
----------------------------------------------------------------------------
--
International Man of Intrigue and Danger
http://www.vintage.org
* Old computing resources for business and academia at www.VintageTech.com
*
2:44 p.m.
On Sun, 3 Mar 2002, Gary Hildebrand wrote:
Trying to figure out what this one is:
I think it is an Apple built memory board, has two rows of ram chips, 32
total, PLCC custom chip and a 24 pin (rom?) chip at the bafk end of the
board. Number silk screened is 670-0024-A
I'm wondeing if I can just plug and play, or if there is some sort of
software driver to access this memory? any web pages on it???
Maybe an 80 column card with memory expansion?
Someone here has to know what it is...
-Toth
4:24 p.m.
Tothwolf wrote:
On Sun, 3 Mar 2002, Gary Hildebrand wrote:
Got one of those already . . . it is a small board with about 5 small
IC's on it. This is a full size board.
Gary HIldebrand
Trying to figure out what this one is:
I think it is an Apple built memory board, has two rows of ram chips, 32
total, PLCC custom chip and a 24 pin (rom?) chip at the bafk end of the
board. Number silk screened is 670-0024-A
I'm wondeing if I can just plug and play, or if there is some sort of
software driver to access this memory? any web pages on it???
Maybe an 80 column card with memory expansion?
Someone here has to know what it is...
-Toth
4:27 p.m.
I've never seen an Apple IIe without the 80-column capability. Is there such
a thing? I routinely take-apart and scrap the things in order to get the PSU.
Perhaps I should look next time. I've got one or two from which I'll extract
the PSU once the snow melts off them. I could look to see if I see anything
like that. Ordinarily I don't even look for any extras. I just remove the
PSU and chuck the rest.
Dick
----- Original Message -----
From: "Gary Hildebrand" <ghldbrd(a)ccp.com>
To: <classiccmp(a)classiccmp.org>
Sent: Sunday, March 03, 2002 8:24 PM
Subject: Re: Apple IIe memory board
Tothwolf wrote:
On Sun, 3 Mar 2002, Gary Hildebrand wrote:
Got one of those already . . . it is a small board with about 5 small
IC's on it. This is a full size board.
Gary HIldebrand
Trying to figure out what this one is:
I think it is an Apple built memory board, has two rows of ram chips, 32
total, PLCC custom chip and a 24 pin (rom?) chip at the bafk end of the
board. Number silk screened is 670-0024-A
I'm wondering if I can just plug and play, or if there is some sort of
software driver to access this memory? any web pages on it???
Maybe an 80 column card with memory expansion?
Someone here has to know what it is...
-Toth 
5:32 p.m.
What do you use the PSU for? Before you start chucking things, please
look at the installed cards. I'd love to get a scsi card for mine.
Chad Fernandez
Michigan, USA
Richard Erlacher wrote:
I've never seen an Apple IIe without the 80-column capability. Is there such
a thing? I routinely take-apart and scrap the things in order to get the PSU.
Perhaps I should look next time. I've got one or two from which I'll extract
the PSU once the snow melts off them. I could look to see if I see anything
like that. Ordinarily I don't even look for any extras. I just remove the
PSU and chuck the rest.
Dick
5:59 p.m.
Yeah ... I have to remove the top to get at the PSU, so I look at the cards.
The one I took apart today has a short 64K card, from some 3rd party vendor,
that I've never seen before. A typical IIe costs on the order of $5-10 and
I've yet to see any interesting cards. I'd take an 8" FDC or a SCSI board
myself, BTW, just to say I have one. I've got 5-1/4" and 3-1/2" drives for
these puppies, though I've yet to try the 3-1/2" types on a IIe.
These things are a lot better-built than the ][+, but I guess that's progress.
I do save the socketed standard parts and LSI's, though I don't save the
custom parts or keyboard, generally. I may save a few keyboards, though,
since I'm currenty working an SBC that could conceivably benefit from one.
The PSU's are very adequate for a number of applications since they supply
+12, +5, -5 and -12. Being completely enclosed, they're handy for powering
protypes and demo equipment. It's not unusual to use a dozen or two of them
to power a dozen or two specific functions. I'm in the "proof-of-concept"
business, having prepared front-end prototypes for over 20 years. It's not
unusual to use 20 independent microcontrollers to demonstrate a concept
implemented in software, that later ends up in a single board, or even a
single ASIC. Having them on lots of separate boards makes it easy to
partition the tasks and align the processing bandwidth with the conceptual
boundaries. As the various tasks move from board to board over the evolution
of a project, performance is often improved or reduced, and that gives
information not otherwise obtainable in a short-cycle development effort.
Dick
----- Original Message -----
From: "Chad Fernandez" <fernande(a)internet1.net>
To: <classiccmp(a)classiccmp.org>
Sent: Sunday, March 03, 2002 9:32 PM
Subject: Re: Apple IIe memory board
What do you use the PSU for? Before you start
chucking things, please
look at the installed cards. I'd love to get a scsi card for mine.
Chad Fernandez
Michigan, USA
Richard Erlacher wrote:
>
> I've never seen an Apple IIe without the 80-column capability. Is there
such
> a thing? I routinely take-apart and scrap the
things in order to get the
PSU.
> Perhaps I should look next time. I've got
one or two from which I'll
extract
> the PSU once the snow melts off them. I could
look to see if I see
anything
> like that. Ordinarily I don't even look for
any extras. I just remove
the
PSU and chuck
the rest.
Dick
8177
days inactive
8178
days old
11 comments
6 participants
participants (6)
-
edick＠idcomm.com -
fernande＠internet1.net -
foo＠siconic.com -
ghldbrd＠ccp.com -
louiss＠gate.net -
tothwolf＠concentric.net