ATLAS Status and Latest Results

The Large Hadron Collider at CERN has resumed its operation in 2011 by showing a stable world-record-breaking performance at 3.5 TeV per proton beam energy. ATLAS is one of four major experiments accumulating data since the LHC start-up. The status of the detector and its performance are presented in this talk. The main results are summarized, including soft- and hard-QCD processes, W and Z boson production, as well as search for new physics.