ThinkPad its 1992 launch to keep the Harvard Business School happy. In April 1992, IBM announced the first ThinkPad tablet computer at a news conference. The first ThinkPad tablet, a PenPoint-based device formally known as the IBM 2521 ThinkPad, was positioned as a developer's release. The ThinkPad tablet became available for purchase by the general public in October of the same year. In addition to giving it an innovative name, IBM marketed the ThinkPad through imaginative activities such as early customer pilot programs, numerous pre-launch announcements, and an extensive loaner program designed to showcase the product's strengths and weaknesses. IBM even
Lenovo United States for the first time. Lenovo is the world's largest personal computer vendor by unit sales from 2013 to 2015. In 2016 Lenovo shipped an estimated 55.5 million PCs, for an estimated 21.3% market share, according to market research firm International Data Corporation. For the fiscal year ending March 2016, the company reported revenue of USD$44.9 billion. The company's expansion was boosted in part by a joint venture with NEC in Japan called Lenovo NEC Holdings. Lenovo was able to reclaim its top spot in PC market share 2018. In 2009, China Oceanwide Holdings Group, a private investment firm