src:		The Emacs source distribution

i386:		Precompiled Emacs for x86 machines
mips:		Precompiled Emacs for mips machines (if available)
alpha:		Precompiled Emacs for alpha machines (if available)
ppc:		Precompiled Emacs for powerpc machines (if available)

utilities:	Utilities for handling the distribution files (all cpus)