This is my blog about vintage Data General minicomputers

In 2008 I started to search the Internet for a Honeywell H-316 minicomputer. Why? Simply for nostalgic reasons. Do I run a computer museum? No, not really since my collection is not open to the public. But if you are interested, please let me know and I will let you have a look at my collection of vintage Data General minicomputers.

This $4600 memory could store 132 characters (one printed line)
This $4600 memory card for the IBM System/360 2821 Control Unit was used to store one printed line (132 characters)

Back in 1969, at the age of 18, I got my first job in the industry with IBM in Sweden as a Test Engineer for the System/360 2821 Control Unit. The 2821 in its minimum configuration had one 1403 Line Printer attached to it and in its largest configuration it controlled three 1403 Line Printers and a 2540 Card Reader/Punch. The input and output data from and to the CPU came via the I/O Channel.

1972 I got a job with Honeywell’s Controls Division as a Regional Systems Hardware and Software Specialist for Honeywell’s Delta 2000 Building Automation system. An option for the Delta 2000 was the Honeywell H-316 minicomputer, hence my interest in the H-316. I took my first Assembly language programming class on a H-716, which was how I learned how a computer operated. Honeywell later came out with the successor to the Delta 2000, the Delta 1000 which was based on the IMP-16 chipset (the Delta 1000 CPU was in fact almost a copy of National Semiconductors IMP-16 development system but with extra I/O slots for communication boards for the field panels.) If you have a National Semiconductors IMP-16 development system sitting around I would be interested in including it in my collection.)

Below is a picture of my Data General Nova 3/12 being restored

Data General Nova 3/12 Front Panel view

After leaving Honeywell, I worked with Nova 3’s and Nova 4’s at a company called T.A.C. and later as a sales rep with Data General, hence my interest in DG systems and the name of this blog, “The Soul of an Old Machine”. If you read the Pulitzer winning book “The Soul of a New Machine” by Tracy Kidder, then you know where I got the title of my blog from. The Soul of a New Machine is a book about the job of designing the next generation 32-bit system at DG; the Eclipse MV/8000, code-named “Eagle”.  Below is a picture of my Eclipse MV/8000 and more information is posted on these pages MV/8000.

This is my Data General Eclipse MV/8000


  1. #1 by Mike on Tuesday 15 June, 2010 - 06:41

    I’m dying to get my hands on an old Honeywell 716. Anyone have an ideas? I worked for a computer communications company who utilized H316, H716, and H6/06 minis in their offerings.

  2. #2 by Carl Hagen on Friday 5 August, 2011 - 18:30

    I have a Data General MV/2500 that needs to go. It was working when it was parked around 2004. Let me know if you are interested. I am in Nevada, USA.


  3. #3 by Todd on Monday 3 November, 2014 - 21:31

    Hey there!
    Great blog.
    Is it possible to communicate via email?
    I am a hobbyist, interested in resurrecting a “classic” minicomputer of the Nova type. I have found one nearby, in my area, a Nova 4.
    I am hoping to get some advice on how to determine if it is a good candidate for a resurrection.
    Also, if you know where to find software, etc.
    I am willing to contribute to the Nova/Eclipse/Data General hobbyist community!

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