text: Personal and business computing Lenovo markets the ThinkPad, IdeaPad, Yoga, Legion and Xiaoxin (; Chinese market only) lines of laptops, as well as the IdeaCentre and ThinkCentre lines of desktops. It expanded significantly in 2005 through its acquisition of IBM's personal computer business, including its ThinkPad and ThinkCentre lines. As of January 2013, shipments of THINK-branded computers have doubled since Lenovo's takeover of the brand, with profit margins thought to be above 5%. Lenovo aggressively expanded the THINK brand away from traditional laptop computers in favor of tablets and hybrid devices such as the ThinkPad Tablet 2, ThinkPad Yoga, ThinkPad 8, ThinkPad Helix, and ThinkPad Twist; the shift came as a response to the growing popularity of mobile devices, and the release of Windows 8 in October 2012. Lenovo achieved significant success with this high-value strategy and in 2013 controlled more than 40% of the market for Windows computers priced above $900 in the United States.
  ThinkPad
  The ThinkPad is a line of business-oriented laptop known for their boxy black design, modeled after a traditional Japanese bento. The ThinkPad was originally an IBM product developed at the Yamato Facility in Japan by ; they have since been developed, manufactured and sold by both IBM and Lenovo after early 2005, following its acquisition of IBM's personal computer division. The ThinkPad has been used in space and was the only laptop model certified for use on the International Space Station until 2016.
  ThinkCentre
  The ThinkCentre is a line of business-oriented desktop computers which was introduced in 2003 by IBM and since has been produced and sold by Lenovo since 2005. ThinkCentre computers typically include mid-range to high-end processors, options for discrete graphics cards, and multi-monitor support. Similar to the ThinkPad line of computers, there have been budget lines of ThinkCentre branded computers in the past. Some examples of this include: M55e series, A50 series, M72 series. These "budget" lines are typically "thin clients" however, meaning they are not standalone computers, rather, they are access points to a central server.