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The Harris 100 launched in 1978 still used a bank of toggles for initial load.

I was operating and maintaining several until about a decade ago.

That's a bit surprising on a more expensive machine.

How often would you reboot them?

Typically daily. They were used for troubleshooting and repairing military avionics. They survived decades onboard ships, etc. They got temperamental in their later years, but we kept them going.

If you have any interest you can search up the (sparse) information on the AN/USM-484 Hybrid Test Set (or System).

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