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Early (earliest?) HP-41C find.
03-10-2024, 11:30 AM
Post: #34
brouhaha Offline
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dump of 1901A "DDC" ROM 2C?
Preproduction 1901A units are reported to have used "DDC" mainframe ROMs. Has anyone done a dump of the hitherto unknown ROM2C, or looked at the CPU board to see what the ROM's part number is?

The analysis of the also-rare prototype DDD was quite interesting.
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Messages In This Thread
RE: Early (earliest?) HP-41C find. - hth - 07-29-2018, 07:46 PM
RE: Early (earliest?) HP-41C find. - CY-CL - 08-01-2018, 11:58 AM
RE: Early (earliest?) HP-41C find. - hth - 08-01-2018, 05:43 PM
RE: Early (earliest?) HP-41C find. - hth - 08-01-2018, 05:50 PM
RE: Early (earliest?) HP-41C find. - CY-CL - 09-06-2018, 07:07 PM
RE: Early (earliest?) HP-41C find. - CY-CL - 08-30-2019, 11:13 AM
RE: Early (earliest?) HP-41C find. - CY-CL - 08-30-2019, 07:31 PM
RE: Early (earliest?) HP-41C find. - Gene - 08-31-2019, 12:57 PM
RE: Early (earliest?) HP-41C find. - hth - 08-31-2019, 06:56 PM
RE: Early (earliest?) HP-41C find. - Gene - 08-31-2019, 07:11 PM
dump of 1901A "DDC" ROM 2C? - brouhaha - 03-10-2024 11:30 AM



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