Linux is ...
Linux/m68k is the port of Linux to the Motorola m68k processor family.
Linux/PPC is the port of Linux to the Motorola/IBM PowerPC processor family.
The Linux frame buffer device abstraction.
The Linux Zorro Utilities.
My talk at Linux Expo '99 ...
uClinux is the port of Linux 2.0 to CPUs without a MMU (Memory Management Unit).
Porting uClinux to the Amiga!