ThinkPad, named "thinkbook" in Chinese, was a portable computer brand under the IBM PC division before 2005, and enjoyed a high reputation in the industry for its solid and reliable characteristics. After Lenovo acquired the IBM PC division, the ThinkPad trademark was owned by Lenovo. ThinkPad has always maintained a classic black appearance since it came out, and also has its own unique views on technology, such as TrackPoint (pointing stick, commonly known as Little Red Riding Hood), ThinkLight keyboard light, full-size keyboard, APS (Active Protection System).