Re: Unidentified IIe Card !!!

[dempson@actrix.gen.nz (David Empson)]

Scott Alfter <salfter@chakotay.ncc74656.org> wrote:

> In article <3906d5dd.0@news.acay.com.au>,
> Leslie Ayling <layling@intercoast.com.au> wrote:
> >There was an 8088 card produced that allowed the Apple//e to run
> >run MSDOS 3.3, one turned up on EBAY last week in fact. Who
> >manufactured it, I don't recall.
> 
> You're thinking of the PC Transporter, from Applied Engineering.  It
> actually used a V20, not an 8088 (or was it a V30 instead of an 8086?).

V30.  It has a 16-bit data bus.  The processor runs at about 7.2 MHz,
which works out about 3 times the speed of a PC/XT (4.77 MHz 8088).
Disk I/O sluggishness throws the calculation back in favour of the real
PC, however.

> (The difference was that the V[23]0 was a little bit faster than the 808[86]
> at a given clock speed.)

Another difference is that the V20/V30 have several extra instructions
(a close match to the extra instructions in the 80188/6, if not
identical).  Some MS-DOS software which nominally requires an 80286 but
runs in real mode will also work on a V20/V30/80188/80186.

> >There was also a 68000 card (I know, because I have one) that allowed
> >you to run CP/M-86 aswell.
> 
> I think I saw an ad for one of these long ago, but it was aimed more at
> running MacOS than CP/M-86 (wasn't that an x86-based OS anyway?).

Yes.  CP/M-86 requires an 8088 or 8086, so a 68000 card would have
nothing to do with it.

The 68K version of OS/9 seems a more likely prospect.  MacOS would be
highly improbable.

Was there ever actually a 68K card which made it to the market?  I
remember hearing about one being designed, but I don't remember it being
released.

-- 
David Empson
dempson@actrix.gen.nz
Snail mail: P O Box 27-103, Wellington, New Zealand