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  • smp's Avatar
    June 24th, 2020, 09:56 AM
    Well, Geoff, I was feeling like I was letting you down by not doing anything on my side, so I went on out into my garage and fired up my old PC that...
    10 replies | 231 view(s)
  • smp's Avatar
    June 24th, 2020, 06:52 AM
    Hi Geoff, Yes, HP made completely sure that they controlled everything. When you format a disk within CP/M, you create the CPMSYS file on the...
    10 replies | 231 view(s)
  • smp's Avatar
    June 24th, 2020, 05:16 AM
    Thanks very much for the advice, Geoff! I had not thought of that. Since the source code is plain text, so I did not think about a word processor...
    10 replies | 231 view(s)
  • smp's Avatar
    June 23rd, 2020, 03:13 PM
    Yes, indeed! I managed to find this in my CP/M Bible, by Waite & Angermeyer. Tried it. It worked, and I came back here to report that same thing...
    10 replies | 231 view(s)
  • smp's Avatar
    June 23rd, 2020, 02:07 PM
    Hello all, I am exercising CP/M on my HP86B. HP sold an "Auxiliary Processor" also known as the CP/M system. As with other systems of that time,...
    10 replies | 231 view(s)
  • smp's Avatar
    June 22nd, 2020, 05:18 AM
    smp replied to a thread BASIC for 8080 in CP/M and MP/M
    Sorry to be late to the topic ... IMSAI 4K and 8K BASIC are both available in HEX files as well as source code. I forget where I picked up my...
    15 replies | 504 view(s)
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About smp

Basic Information

Date of Birth
June 16
About smp
Graduated college with my BSEE in 1975. MSCS in 2002.

Retired in October 2016, and I'm loving every moment of it.

A note from my past history:
In November 1976, I opened the first computer store in NH: Microcomputers, Inc. We sold IMSAI, Polymorphic, and Northstar kits, and assembled cards and computers. We attempted to sell complete systems into local small businesses. My partner and I operated until the fall of 1978, when we went broke.

I have (currently working):
Altair 8800c, Altair 680, Northstar Horizon, JAIR-8080 CPU board, HP-86B with HP-82900A Auxiliary Processor (A.K.A. CP/M System) and HP-9121D floppy disk drive, HP-110+ with HP-9114 floppy disk drive, HP-200LX, HP-71B, HP-41CL, HP Jornada 820, Apple IIC+, Apple IIGS (ROM 3), Tandy 2800HD, CoCo 3 with SDC, CoCo3FPGA, Heathkit H8, Osborne 1, Osborne Executive, Macintosh 512KE, Macintosh PowerBook 170, Macintosh Graphite iBook 466MHz (M6411), DEC PDP-11/23;

and (currently non-working):
Heath/Zenith Z-110, SPARCclassic, a small variety of Macintosh desktop units.
Bedford, NH, USA
Space Exploration, Astronomy, Vintage Computing, RV Camping
Retired, and loving it!


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Join Date
October 4th, 2011