"Platforms. Linux is not just for Intel-based platforms: It has
been ported to and runs on the Power PC--including Apple computers
(ppclinux), Compaq's (née Digital Equipment Corporation)
Alpha-based machines, MIPS-based machines, Motorola’s 68K
based machines, various 64-bit systems, and IBM’s S/390. Nor
is Linux just for single processor machines: As of version 2.0, it
runs on multiple-processor machines (SMPs). It also includes an
O(1) scheduler, which dramatically increases scalability on SMP
systems."
