I remember the Osbornes, I had one for a few months when I was a kid. IIRC they had parallel ports on the front that you can use as GPIOs if you fancy flashing

I remember the Osbornes, I had one for a few months when I was a kid. IIRC they had parallel ports on the front that you can use as GPIOs if you fancy flashing a few LEDs or controlling relays. There was also a dBase implementation for it. Since you also had a serial port (RS-442??), you could in theory use the it to get internet access and in theory control a relay from the internet making the worlds oldest IoT hub/controller? Bizarre idea, I know.