The ThinkPad T series is a line of laptop computers. Originally developed by IBM, and introduced in 2000, the brand was sold along with the rest of IBM's business computer division to Chinese technology company Lenovo in 2005, who have continued to produce and market succeeding models.
T20 – the first in the T series
The last ThinkPad to have been manufactured directly by IBM (T43).
T22 or T23 before the sale to Lenovo
Inside of a T41
ThinkPad is a line of business-oriented laptop computers and tablets, the early models of which were designed, developed and marketed by International Business Machines (IBM) starting in 1992. IBM sold its PC business, including laptops to Lenovo in 2005, and since 2007, all new ThinkPad models have been branded Lenovo instead. The Chinese manufacturer further developed the line, and is still selling new models in 2024.
A 1980s-era IBM THINK notepad (above), which inspired the laptop name, and the notepad refill information (below)
IBM/Lenovo's Yamato Lab where the Think line of products is developed
The ThinkPad logo used by Lenovo since 2007 (left) and the original IBM ThinkPad logo (right)
A ThinkPad's characteristic boxy black exterior (X201 on top of an X220)