ThinkPad T series T420s, and the T520, have been lauded for their battery life – up to 30 hours with a 9-cell battery slice. ThinkPad T series The ThinkPad T series is a line of laptop computers introduced by IBM in 2000. After the transfer of the consumer computer division in 2005, they were developed and marketed by Chinese technology company Lenovo. IBM introduced the T series as part of their ThinkPad brand in 2000. The laptop was meant to cater to users working with multiple networks and in different environments. This resulted in the development of the IBM Embedded Security Subsystem. From
Lenovo users to the Internet and opened the Web browser. It was co-branded with China Telecom and it was bundled with one year of Internet service. The Tianxi was released in 1998. It was the result of two years of research and development. It had a pastel-colored, shell-shaped case and a seven-port USB hub under its screen. As of 2000, the Tianxi was the best-selling computer in Chinese history. It sold more than 1,000,000 units in 2000 alone. Lenovo works to integrate the management of each newly acquired company into its larger culture. Lenovo has a dedicated mergers and acquisitions team