3. Joe Tucci
Chairman and CEO
EMC
Few IT executives have had the foresight and vision than that of EMC CEO Joe Tucci, who has taken the storage giant from a pure-play storage company to a cloud computing leader with game-changing acquisitions including VMware. Don't look now, but EMC is becoming the center of the cloud computing universe with software from VMware and its other software units, including Vmware's $1.05 billion acquisition of network virtualization kingpin Nicira.
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