I suspect that the Pi 400 kit is a nod to the Archimedes 400 series, but I haven...

lproven · on March 11, 2025

Huh. Interesting but I think it's coincidence TBH.

The all-in-one Archimedes were the 3xxx series: A3000, 3010, 3020.

That would have been a far more obvious and better fit.

The Pi 400 is based on the Pi 4, so 4000 would have fit, but the A4000 was a classic 3-box design with a SoC:

whywhywhywhy · on March 11, 2025

Might be a nod to Amiga 500 which was far more prolific outside of schools in the UK and was keyboard form factor.