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3546RE: [midatlanticretro] Re: IMSAI haul, continued

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  • B Degnan
    Jun 8, 2006
      I have a lot of IMSAI disks, I will check to see what I have. They
      are all 5 1/4"
      Bill

      At Thursday, 08 June 2006, you wrote:

      >Herb:
      >

      >
      >            I
      >don’t have a bootable copy of the FDOS (the Frugal Floppy DOS; the OS
      >that originally came with the system). I do have a few CP/M 1.4
      disks (none a
      >complete “master” but I’m in the process of building one from
      >the CP/M archive). I have some disks labeled CP/M 2.2 but none of
      them appear
      >to boot. From what the sender tells me, he sent me whatever 8” disks he
      >had, which included disks from various systems.
      >

      >
      >            The
      >interface is called “8800 Interface” and is a bunch of 74xx logic,
      >a ROM and some RAM. There are no floppy controller chips (17xx,
      827x, other)
      >anywhere to be found.
      >

      >
      >Rich
      >

      >
      >Rich Cini
      >
      >Collector of classic computers
      >
      >Lead engineer, Altair32 Emulator
      >
      >Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/
      >
      >Web site: http://www.altair32.com/%c2%a0
      >
      >/***************************************************/
      >
      >-----Original Message-----
      >From: midatlanticretro@yahoogroups.com [mailto:midatlanticretro@yahoogroups.
      com] On Behalf Of Herb Johnson
      >Sent: Thursday, June 08, 2006 6:32
      >PM
      >To: midatlanticretro@yahoogroups.com
      >Subject: [midatlanticretro] Re:
      >IMSAI haul, continued
      >

      >
      >--- In midatlanticretro@yahoogroups.com,
      >"Richard A. Cini" <rcini@...>
      >wrote:
      >
      >> UPS today brought two boxes from my friend in Arizona, filled
      >> with more stuff for the IMSAI system he sent me. Among the stuff is
      >> FD400 floppy drives....I've also been told this
      >> person has another complete dual-drive ICOM system he's
      >> going to be sending.
      >
      >Rich, I've been discussing in comp.os.cpm the role of IMSAI in
      >developing CP/M 1.4; it appears that CP/M 1.3 became IMDOS 2.0. From
      >your archives or from this recent haul, what do you have of these
      >earliest OS's or docs about them? And out of curiousity, what floppy
      >controllers were in this haul, as the key changes in early CP/M and
      >IMDOS were about floppy support?
      >
      >Herb Johnson
      >
      >Herbert R. Johnson, New Jersey USA
      ><a href="http://retrotechnology.com/herbs_stuff/">
      >web site</a>
      ><a href="http://retrotechnology.net/herbs_stuff/">
      >domain mirror</a>
      >my email address: hjohnson AAT retrotechnology DOTT com
      >if no reply, try in a few days: herbjohnson ATT comcast DOTT net
      >"Herb's Stuff": old Mac, SGI, 8-inch floppy drives
      >S-100 IMSAI Altair computers, docs, by "Dr. S-100"
      >
      >
      >
      >



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