I have a Dallas slotless clock device which goes between one of the
ROMs and its socket on an XT.  Can anyone tell me which ROM it goes
between and what software I need to read it?  Can I get this soft-
ware from public domain?

7 responses total.

That is a really neat idea.  I never heard of one.  If I had only known nine
years ago.  ;)

That's about when you could get them.....

But it still doesn't answer my question.    Hummm, lets see here.... Yep,
I still have the computer!  (Not to long ago it was the ARROW BBS.  In a 
bit less than two weeks it will be at the Chelsea swap.)

Datapoint: the FBE Research "SmartWatch" installed "in ROM Socket on CPU
Board in Zenith computer series Z-100/150/158/160". There was only one
ROM socket. (Info from REMark, April 1987.) Software is another matter.
OK, more data: the FBE SmartWatch uses the Dallas DS1216E module.
FBE Research existed as recently as 1992 (!): PO Box 68234, Seattle WA 98168;
206-246-9815. 

I'll think about passing that along to whom ever buy it from me come June 2nd.

I remember installing several of those.  I might even have a backup of the
driver disk somewhere.  It was a pretty neat device, using a single serial
output pin.  The first one I bought had a manual which described the protocol
in all its technical glory.  If I remember correctly, the disk also had
drivers for the Apple ][. 
  To answer your original question: it doesn't matter.  The PC driver supplied
searched the entire ROM address space until it found an address that responded
like a clock chip.  You could stuff it into any ROM socket that was the right
size.  I've run them under the BIOS rom, the BASIC ROM, and even the BIOS
extension rom on a disk controller.  By now, though, I suspect the 10-year
lithium battery in most of them is getting a bit stale...

Yea, and I don't even have the computer any more ;-)

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