ThinkPad X61

The X series of laptops and convertible tablets are part of Lenovo's ThinkPad product line. Formerly an IBM brand, Lenovo acquired the ThinkPad brand following its purchase of IBM's Personal Computing Division (PCD) in 2005. The ThinkPad X series is traditionally the range best designed for mobile use, with ultraportable sizes and less power compared to the flagship ThinkPad T series. It was initially produced by IBM until 2005. 来源：https://en.wikipedia.org/wiki/ThinkPad_X_series 主图来自 Wikimedia/Wikipedia，发布前请核对 Commons 许可。