ThinkPad ya kasan ce wani layi ne wanda na kwamfyutocin kasuwanci masu dacewa da kasuwanci da allunan da Lenovo / IBM suka tsara, suka haɓaka da tallata su. IBM ya fara siyar da shi har zuwa 2005. ThinkPads suna da baƙar fata, harshe ƙirar boxy, wanda aka yi wahayi da shi daga akwatin abincin rana na Japan, wanda ya samo asali a shekara ta alib 1990 kuma har yanzu ana amfani da shi a wasu samfura. An fara samar da layin ThinkPad a IBM Yamato Facility a Japan, kuma aka saki ThinkPads na farko a watan Oktoba shekara ta alib 1992. ThinkPads sun ga babban nasara a kasuwar kasuwanci. An yi amfani da kwamfyutocin ThinkPad a sararin samaniya kuma shekaru da yawa sune kawai kwamfyutocin kwamfyutocin da aka tabbatar don amfani akan tashar sararin samaniya ta duniya, An haɓaka ThinkPad don yin gasa tare da Toshiba da Compaq, waɗanda suka ƙirƙiri litattafan rubutu na hannu guda biyu na farko, tare da mai da hankali kan siyarwa zuwa Makarantar Kasuwancin Harvard.