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26097Re: [midatlanticretro] Re: Booting a NorthStar Horizon

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  • B Degnan
    Jun 4, 2012
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      check bitsavers.org for the manuals, but most important find the northstar horizon user manuals, they will tell you everything you need to know.

      This is a classic n* system.  You will need a 10-sector northstar DOS or Northstar CP/M disk to boot.  I assume the RAM is jumpered to be contiguous, but you need to be sure you have at least the first 24K filled contiguously.


      At 08:20 PM 6/4/2012, you wrote:

      I got a chance to look at the N* again today. It looks like the disk controller is an MDS-AD3, from N*. Also installed is a CompuKit Econoram VII A board, with one of the 5 of the 6 rows of RAM fully populated. There's also a N* 16k RAM board, and the processor card, a ZPB-A2. The floppy drives are made by Tandon, and are both TM101-4s.

      I can't find too much info the particular floppy controller, other than that it appears to be a double-density unit. I suppose it's still using hard sectors.



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