EME Systems (www.emesystems.com) make "environmental science" devices. In the day, they were using the M102 as the control computer for their devices, which at the time were mostly weather monitor/loggers.
They were the inventors of the ROMBO (the semi rigid flex circuit that wraps around a standard 27C256 EPROM) to put their custom low level driver code into the Option ROM socket. The ROMBO has a label telling what program the ROM is used with. There was also a BASIC program that controlled the computer. One of the M102 computers I bought used, had the EME OWL ROM in it (the computer was used to do weather logging), but did not come with the external hardware (wind speed/direction/temp/humidity/rain gauge) or the OWL BASIC program. So I erased the EPROM and re-programmed it with the Polar Systems ROM II code I had from my other M102. Could be that you have one of the other EME systems EPROMS or that a previous owner re-programmed it. Regards, Peter <snip> > ---------------------------------------------------------------------- > > Message: 1 > Date: Sat, 7 Jul 2018 02:47:42 +0000 > From: Fugu ME100 <[email protected]> > To: "[email protected]" <[email protected]> > Subject: [M100] Unusual OPTROM in T102 > Message-ID: > <AM5P190MB0513EAA0DA5AFABEBCD47423A0460@AM5P190MB0513. > EURP190.PROD.OUTLOOK.COM> > > Content-Type: text/plain; charset="us-ascii" > > Just acquired an eBay T102 with an OPTROM that was not listed in the sale > description - surprised to see it there when I was replacing the battery. > When called it sets up as TFDC99 in the menu. Trying to run that > generates a FF error at 10. It is housed in an EME wrap around PCB and > looks like it uses a regular EPROM. It could be a commercial piece of > software or someones project, there are no labels on the module - does not > appear it ever had any. > > A quick search of the Archive and Google did not throw anything up, just > wondering if anyone might be able to shed any light on what it > was/is/could be? > > When I get time I can dump the ROM see if it has any useful copyright > text. > > Thanks!! > > <big snip>
