International Business Machines Corporation (IBM) is an information technology (IT) company. IBM's segments include Global Technology Services (GTS), Global Business Services (GBS), Software, Systems and Technology and Global Financing. GTS primarily provides IT infrastructure services and business process services. GBS provides professional services and application management services. Software consists primarily of middleware and operating systems software. In January 9, 2012, IBM acquired Platform Computing. In January 11, 2012, it acquired Green Hat. In February 1, 2012, IBM acquired Emptoris Inc. In February 15, 2012, it acquired DemandTec Inc. In February 10, 2012, it completed the acquisition of Worklight. In May 2012, the Company acquired Varicent Software Incorporated. In May 2012, the Company acquired Vivisimo. In June 2012, the Company acquired Tealeaf Technology, Inc.