  We present an X-ray fast-timing and spectral analysis of the type II bursts
and the persistent emission (PE) of the Rapid Burster observed with the EXOSAT
Medium-Energy Instrument. The Hardness-Intensity and Color-Color Diagrams of
the Rapid Burster are somewhat different from those of the majority of other
low-mass X-ray binaries, which fall into two distinct groups, ``atoll'' and
``Z'' sources. The strength and frequencies of quasi-periodic oscillations
(QPO) in the bursts and the PE, as well as a strong anti-correlation between
QPO frequency and burst peak flux, also distinguish the Rapid Burster from
atoll and Z sources. The presence, frequency, and strength of QPO in type II
bursts are all correlated in some manner to the spectral hardness, as are the
strength of QPO and the very low-frequency noise (VLFN) component in the
persistent emission.
