On 8/12/06, Chuck Guzis <cclist at sydex.com> wrote:
Well, since I was digging for the WDC LCD thingie, and
didn't find it, I
should mention that I found a brief description of the Ad-Con boards. Here
goes:
AdCom2-M
128K Bytes RAM
2 serial ports
Data encryption
Synchronous mainframe link
Async, Bisync, HDLC, SDLC, X.25 terminal/protocol emulation
Introduced 1984, Cost $850
This, oddly, was not the high-end model. The AdCom2-I had double the
memory, was introduced in 1985 and was priced at $1495. Software was
included with each board. There was also a plane-Jane AdCom2 with a
printer port, clock/calendar and 64K of RAM, no encryption, introduced in
1983 and listed at $275.
That sounds a lot like a COMBOARD, but I don't recall ever seeing an AdCom
board (just competitors from Simpact Associates and a couple of others).
We used to charge a couple of grand (hardware only) for a Unibus or
Qbus board with 32K - 256K of RAM, 1 or 2 sync serial ports, local
printer port, etc. Software was a bit more than just a spare board
price, depending on protocol and line speed.
Got any pictures? I'm curious to see what it looks like.
-ethan