[GEM Development] Talking of interesting screenshots...
John Elliott
jce at seasip.demon.co.uk
Sun Mar 6 18:47:57 PST 2005
: Anybody know how much engineering effort the OEMs contributed to these
: versions of GEM?
The Apricot F1 driver - and the Master 512 driver - have Digital Research
copyright messages. The Apricot utilities (CONFIG.APP / GEMDISK.APP) have
ACT copyright messages.
: I presume DRI did the bulk of the work on GEM itself
: (although I doubt much was necessary, since these machines are x86/68k based
: it's mainly a case of altering the OS bindings?)
The Apricots run MS-DOS (or Concurrent DOS), so there's no need to change
the OS bindings - just the hardware drivers.
: but would they have also
: written the drivers and/or underlying OS? ISTR they wrote the driver for
: Amstrad's 16-colour CGA, and of course they provided DOS Plus to several
: OEMs and GEMDOS to Atari.
The Logo boot disc for the F1 contains Personal CP/M-86 3.3, which has
FAT filesystem support but (unlike DOS Plus) no DOS emulator. It also
contains a version of Logo that has been compiled for the F1. All of these
only contain DRI copyright messages.
: > A quick Google failed to turn up anything about ICL systems that run GEM.
:
: Hmm, this is from the September 85 article?
February 1985.
: I wonder if this is the ICL
: project that had some connection to the 'real' MS-DOS 4? ISTR Larry
: Osterman mentioned on his blog that ICL were interested in that. If so, it
: brings up some very interesting possibilities.
<http://groups.google.co.uk/groups?selm=329718.12549.14477%40kcbbs.gen.nz>
suggests that this was the ICL DRS 300 running Concurrent DOS (though I'm
not sure of dates; the ICL Quattro dates from 1985 and also ran Concurrent).
Larry Osterman's blog says that MS-DOS 4.1 ran on the ICL DRS PWS, and that
this was in 1986.
--
John Elliott
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