  The IceCube experiment at South Pole consists of two detector components -
the IceTop air shower array on the surface and the neutrino telescope at depths
from 1450 m to 2450 m below. Currently, 26 IceTop stations and 22 InIce strings
are deployed. With the present size of the IceTop array, it is possible to
measure cosmic rays with energies ranging from 0.5 to 100 PeV. Coincident
events between the IceTop and the InIce detector provide useful cross-checks of
the detector performance and furthermore make it possible to study the
cosmic-ray composition. This paper gives an overview on the current status of
IceTop.
