C64 CP/M carts (was: Re: Yet another weekend haul story)

From: Jeff Hellige <jeffh_at_unix.aardvarkol.com>
Date: Thu Jun 19 09:10:50 1997

On 19-Jun-97, Scott Walde wrote:

>My memories are actually of the 1000HX, which I believe was basically the
>same thing but with 3.5" drive instead of 5.25" (And maybe more RAM?)

   The EX and HX had basically the same innards, though as you mentioned, the
HX had two 3-1/2" drive bays above the keyboard, the left one filled with a
720k floppy from the factory. The HX had the same expansion bus as well, and
used the same 'PLUS' style cards. It came stock out of the box with only 256k
RAM and no DMA capability. The DMA wasn't added until you added the PLUS
Memory expansion, which also added a connector for two more PLUS cards. The
interesting thing about the HX was that it contained the bare essentials of
MS-DOS 2.11 in ROM, which acted as drive C:, or you could also boot straight
to Deskmate as well. I've got the Tech Ref manual here for it still, along
with the ones for the Model 2000 and Model 4/4P.

   The HX was the first PC I bought, and it eventually had the PLUS style
memory card, serial card, and 1200 bps modem, as well as an external 5-1/4"
floppy. I used this system for calling all the local BBS's, and even did all
the work in configuring and testing my own BBS on it. I was able to keep the
setup of QuickBBS I had small enough to run off just the two floppy drives!

   Jeff jeffh_at_unix.aardvarkol.com
    Amiga enthusiast and collector of early, classic microcomputers
Received on Thu Jun 19 1997 - 09:10:50 BST

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