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#geos

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Managed to work out how to get into this #Tandy Z-PDA "Zoomer". I haven't found any photos of the insides of this thing online yet.

Unfortunately this one seems to have had some hidden battery leakage, but it seems to be restricted to the speaker and wires for the battery. Everything else looks in good condition.

It can take an external PSU, but I can't find any details on it (voltage, polarity).

Also, it runs #GEOS.

🌍 Circular arcs in QGIS are crucial for precise geographic data! Currently, support is limited, but you can help change that. With our crowdfunding campaign, we aim to enhance their management in GEOS for reliable processing, precise intersections, and new possibilities. We’re halfway there, and we need your help to go all the way! 🚀

💡 Learn more: opengis.ch/fr/2025/05/07/les-a

1/2 I was talking to @howtophil about GEOS and decided that I would spin up a VM to run it. Let me tell you what I learned. I used Qemu and started with FreeDOS (FD14 is really slick!) but GEOS20 would error out on launch. Something to do with memory/files/buffers but none of my fiddling would get it to work. I thought it might have something to do with memory management so I spun up a generic MSDOS6 VM...
#retrocomputing #freedos #msdos #geos