ThinkPad is a Lenovo brand.

ThinkPad was originally a notebook computer produced by IBM, and now it is owned by Lenovo. It was acquired by Lenovo in 25, and the ThinkPad trademark is owned by Lenovo. The design of ThinkPad was inspired by the traditional lunch box. The original design work of ThinkPad was undertaken by IBM's Daiwa Design Center in Japan. ThinkPad's pure black appearance is inspired by a traditional Japanese lacquered lunch box: Shokado bento, which is all black and is often used for lunch.

ThinkPad has always maintained a classic black appearance and has its own unique views on technologies, such as TrackPoint (pointing stick, commonly known as Little Red Riding Hood), ThinkLight keyboard light, full-size keyboard and APS(ActiveProtectionSystem).

product introduction of ThinkPad

ThinkPad A series: which means "All-in-one", is heavy and bulky. It has three drive slots, two of which are replaceable. Some models ending in "P" are the first to use 15-inch UXGA“FlxView "LCD technology in ThinkPad. This series was discontinued in 22.

ThinkPadG series: desktop replacement model, using desktop processor, with heavy weight, large volume and short battery life. This series was discontinued in 25.

ThinkPadi series: low-end models with low prices, which are manufactured by third-party manufacturers (such as Acer and Great Wall) under the technical license of IBM. This series was discontinued in 21.

above content reference: Baidu Encyclopedia -thinkpad