[sethammons]

> If you're skeptical that this feat is possible with a raw 4004, you're right: The 4004 itself is far too limited to run Linux directly. Instead, Grinberg created a solution that is equally impressive: an emulator that runs on the 4004 and emulates a MIPS R3000 processor—the architecture used in the DECstation 2100 workstation that Linux was originally ported to. This emulator, along with minimal hardware emulation, allows a stripped-down Debian Linux to boot to a command prompt.

That's cool

[rob74]

...and also a lot more practical than writing a C compiler that can compile the Linux kernel (not to mention other tools that you might need) for the 4004.

However, one major issue with this (aside from the slow slow speed) is the limited RAM - I assume this requires lots of swapping from the SD card to work?