Re: New Mystery Boards

[nparker@ssil.uoregon.edu (Neil Parker)]

In article <labelas-2610980227160001@1cust1.tnt23.atl2.da.uu.net>,
Labelas Enoreth <labelas@hotmail.com> wrote:
}Hey, don't mean to cut in, but I have some mystery card of my own...
}Listed chips on the board which caught my attention...
}*'Little Blue Limited' "PC Transporter" Applied Engineering
}Has passthrough cables onto the speaker, keyboard, and modulator (?) pins
}on the motherboard of the IIe.
}It's got, let's see, a NEC v30 8710WK, I9591  V6T7737-6009  745V, and a
}VLSI 8835AZ  X1001I  VC2849   as chips which catch my attention, along
}with other miscellanous PROMs and stuff. 19-pin female connector on rear.
}(This is...a PC Compatibility card for the Apple IIe <?!?!>...any idea on
}where one can find an external 5.25 which attaches to it? or the software
}for it?)

It is indeed a PC compatibility card.  It's basically an XT on a board.

}*ALS Z-card
}Z80B cpu, 10 socketed PRAMs, 4 DIP siwtches
}*ALS Z-engine
}Z80B cpu, 3 socketed PROMs, 5 soldered
}(looks like perhaps a lower-end version of the first I guess)
}
}Any idea on these? I'm assuming the Z80 cards are for CP/M, since that's
}like the only good use for a Z80 in a IIe that I can think of...? But no
}software, so dunno what they do. (can I use a CP/M boot disk from, say,
}another CP/M card and have it work with them?)

Usually, with Z80 cards, you can't use any other card's boot disks.  But
one or both of the ALS cards might be a clone of the Microsoft Softcard, in
which case the Microsoft boot disks would work with it.

}Oh, hey, got a mem board as well, 32 ILM41256AP-12 chips
}I saw 256, but there's no way that it is 8192kB for a IIe, right? What am
}I misreading...

More likely you have 1 MB.  The number "41256" looks like a 256K x 1 chip--
i.e. it has 256K *bits*, not bytes.  So effectively you have 32K bytes per
chip, for a total of 1024KB, or 1 MB.

                - Neil Parker
-- 
Neil Parker, nparker@ssil.uoregon.edu, nparker@axis.llx.com,
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