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
ThinkPad X1 Carbon short out, leading to rapid overheating and failure. 83,500 of the laptops have been sold in the US and Canada before recall. In January 2018 at the Consumer Electronics Show (CES), Lenovo presented their sixth generation X1 Carbon, weighing 1.13 kg. It features an 8th generation Intel i5 or i7 processor, along with up to 16 GB of RAM and up to 1 TB of storage. X1 branding is also now present on the cover. The ThinkPad logo has changed to black instead of the previous silver branding. ThinkPad X1 Carbon The ThinkPad X1 Carbon is a high-end 14-inch notebook