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Welcome
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Welcome to VAXBARN, Camiel Vanderhoeven's computer collection, located in a 200-year old farmhouse in the tiny village of Netterden, in the east of the Netherlands, on the border with Germany.
There are always various projects that I'm working on that are related to my collection of old(er) computers, and so far, the information about these different projects has always been kept in lots of different places. Since there are a few people occasionally interested in what I'm doing, I've decided to create this website to both document my collection and to have a place to put information about all these different projects in one single place.
Thewebsite has developed substantially over the years; at its heart sits the Collection pages, which are automatically generated from the museum's inventory system.
Feel free to browse the Collection, or check out some of the projects I'm working on in the menu on the right side of this page.
For any questions or comments, or if you have something you'd like to contribute to the collection, feel free to drop me a note at
iPSC/860 repair
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After we received an appropriate Intel SYP30 front-end (SRM), we could start thinking about getting our Intel iPSC/860 running again. The SYP-301 came with documentation and software for iPSC/2 and iPSC/860 systems, and an iPSC/2 cardcage with 8 node boards from an iPSC/2, a node board from an iPSC/860, an I/O board with SCSI controller, and a USM board.
SRM for the iPSC/860 boots!
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After a fair amount of work in a week's time, the Intel SYP301 that will serve as the Intel iPSC/860's SRM has booted!
Corona-period acquisitions
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Even with all the odd restrictions and precautions that 2020 has forced on us, the occasional visitor bearing gifts still manages to find the museum. I'd like to highlight three of these visits and a pickup we made here.
"ETAP" Mystery Device
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So, here's a bit of a mystery I'd like to share with you: I recently;y received this mystery device from Germany, and I have no idea yet what it is.
Current climate in the barn
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These graphs show the temperature and humidity as measured in nine different places in the barn over the past 24 hours, as well as the dewpoints calculated from this information. Refreshed every 5 minutes (you may need to refresh your browser cache). Created with InfluxDb and Grafana.
The Convex Computer Collection
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Part of the Vaxbarn collection is what could very well be the largest collection of Convex supercomputers in the world.
The Convex adventure started in 2016 with an eBay advertisement, and since then the collection has seen the addition of 9 Convex supercomputers, spanning three generations of machines.
About me
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My name is Camiel Vanderhoeven.
I work as a kernel engineer at VMS Software, Inc., and I am one of the architects for the port of the OpenVMS operating system to the x86 processor architecture.






