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can anyone identify this card/component

S

sanjaya

Jan 1, 1970
0
i got a card from ebay which claimed to be a networking card for apple
ii.

i uploaded a image and info gathered from various groups to
www.geocities.com/pererasanjaya

we have difficulty in identifying the following chip and its
function...

Innovations in Computing
310-6206-001
8936

IC is in the right-middle position of the card. card only has a RCA
out.

on the back of the card, it says
Innovations in computing, Made in USA, Copyright 1989

it would be great if someone can give comments on this card/chip and
the company or its successor....

any comment is grately appreciated.
sanjaya
 
K

Kevin McMurtrie

Jan 1, 1970
0
i got a card from ebay which claimed to be a networking card for apple
ii.

i uploaded a image and info gathered from various groups to
www.geocities.com/pererasanjaya

we have difficulty in identifying the following chip and its
function...

Innovations in Computing
310-6206-001
8936

IC is in the right-middle position of the card. card only has a RCA
out.

on the back of the card, it says
Innovations in computing, Made in USA, Copyright 1989

it would be great if someone can give comments on this card/chip and
the company or its successor....

any comment is grately appreciated.
sanjaya

Did you probe the ROM? Check $Cs00 to $CsFF where s is the slot number.
Also try hitting $Cs00 then dumping $C800 to $CFFE to see if a 2K ROM
bank swaps in. It's not uncommon for a text comment to be in there.

A real catch would be to find a ProDos driver or DOS 3.3 RWTS hack in
the 2K ROMs that mounts a remote filesystem. I once saw this at a
university for a 5MB shared network drive. Try the obvious PR#s/IN#s or
examine the $CsXX for jumps into the 2K ROM bank.

The 2K ROM is shared so be careful to not activate other cards during
your examination.
 
S

sanjaya

Jan 1, 1970
0
Did you probe the ROM? Check $Cs00 to $CsFF where s is the slot number.
Also try hitting $Cs00 then dumping $C800 to $CFFE to see if a 2K ROM
bank swaps in. It's not uncommon for a text comment to be in there.

A real catch would be to find a ProDos driver or DOS 3.3 RWTS hack in
the 2K ROMs that mounts a remote filesystem. I once saw this at a
university for a 5MB shared network drive. Try the obvious PR#s/IN#s or
examine the $CsXX for jumps into the 2K ROM bank.

The 2K ROM is shared so be careful to not activate other cards during
your examination.

Thanks , i will try to see the ROM dump....will post on the net also.

I would like to know bit more about the apple network you saw..
is it a ethernet card or workstation card for apple ii. It seems that
all the software required for network access was in the ROM, did I get
it correctly..
 
K

Kevin McMurtrie

Jan 1, 1970
0
Did you probe the ROM? Check $Cs00 to $CsFF where s is the slot number.
Also try hitting $Cs00 then dumping $C800 to $CFFE to see if a 2K ROM
bank swaps in. It's not uncommon for a text comment to be in there.

A real catch would be to find a ProDos driver or DOS 3.3 RWTS hack in
the 2K ROMs that mounts a remote filesystem. I once saw this at a
university for a 5MB shared network drive. Try the obvious PR#s/IN#s or
examine the $CsXX for jumps into the 2K ROM bank.

The 2K ROM is shared so be careful to not activate other cards during
your examination.

Thanks , i will try to see the ROM dump....will post on the net also.

I would like to know bit more about the apple network you saw..
is it a ethernet card or workstation card for apple ii. It seems that
all the software required for network access was in the ROM, did I get
it correctly..[/QUOTE]

That was almost 20 years ago so I don't remember much. I think it
patched into the DOS 3.3 RWTS interface and used drive numbers to select
partitions. I don't know if that was purely ROM or if it ran a custom
DOS 3.3. DOS 3.3 was so grossly inefficient that anybody with assembly
skills had their own home-brewed version.

I know nothing about the server. This was in an after-school
electronics course for high school students. Neat-o hardware like the
server had to be locked up to keep people like me from taking it apart.
The teacher was disturbed enough that I could read the 6502 assembly of
an operating system like a newspaper.
 
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