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Panafacom Duet-16 #112683 02/18/18 03:00 PM
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rfka01 Online Content OP
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This the suitably odd machine mentioned in another thread, the Panafacom Duet-16

[Linked Image]

I haven't managed to make out the 68K that's supposed to be in there - there's a chance it sits somewhere on the mainboard where I couldn't point the camera as the mainboard tray is so firmly wedged in there I can't get it out. The complete schematics that come with the machine (more scanning to do over the next days and weeks) will have to make up for that.

[Linked Image]

The harddisk controller is 6809 based though, and I've dumped its ROM along with the BIOS, char and keyboard controller ROMs.

[Linked Image]

The harddisk itself is a 10MB affair branded Panafacom, its interface is described by the documentation as AS4000 which would make it SASI.

The second of the blue binders on the next pic (to be scanned next week) contains fold-out A3 sized schematics that go into great detail.

[Linked Image]

I've manged to dump all but one of the disks and took a harddisk backup before I pried apart the machine. The files are incoming on the FTP, so they should be available soon.


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
Re: Panafacom Duet-16 [Re: rfka01] #112685 02/19/18 08:13 AM
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I'm pretty sure the main CPU is an intel 8086/8088, as MS-DOS did not run on the 68000. Google seems to agree. So I wonder what that 68000, if it's indeed in there somewhere, could have been used for?

Re: Panafacom Duet-16 [Re: rfka01] #112688 02/19/18 11:15 AM
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The presence of an 68K is either a myth that's handed down from the Yahoo Groups post that @shattered quoted

https://groups.yahoo.com/neo/groups/eComStation/conversations/topics/78446

or the CPU is present on a coprocessor card that's not present in my system.

I'm scanning the schematics today and will post them later.


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
Re: Panafacom Duet-16 [Re: rfka01] #112690 02/19/18 12:36 PM
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"Duet-16" certainly implies two 16-bit CPUs, but who knows.

Re: Panafacom Duet-16 [Re: rfka01] #112691 02/19/18 02:10 PM
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There's a German news report of the release in 1984, it just mentions a 8086-2.

Here's also an ad which suggests at least the base config came only with one CPU.

[Linked Image]

Last edited by Reuental; 02/19/18 04:44 PM.
Re: Panafacom Duet-16 [Re: rfka01] #112692 02/19/18 03:14 PM
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Quote
I'm pretty sure the main CPU is an intel 8086/8088, as MS-DOS did not run on the 68000.

Yup, MSDOS was 8086 only. Although, Human68k is really close to a 68000 port of DOS as it used mostly the same syscall numbers.

Re: Panafacom Duet-16 [Re: rfka01] #112693 02/19/18 03:51 PM
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Just to make things murkier, CP/M did run on the 68000, and DOS's syscall numbers came from it.

Re: Panafacom Duet-16 [Re: rfka01] #112694 02/19/18 04:21 PM
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Re: Panafacom Duet-16 [Re: rfka01] #112695 02/19/18 04:30 PM
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Good find! And from there it sounds like the 8086 and 68010 versions are completely separate.

Re: Panafacom Duet-16 [Re: rfka01] #112696 02/19/18 07:55 PM
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I've uploaded more Duet-16 documentation including the schematics.


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
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