What are the IBM thinkpad models?

IBM ThinkPad models include a variety of series, such as the ThinkPad X series, known for its portability; the ThinkPad T series, which balances performance and battery life; the ThinkPad P series, designed for workstation-level tasks; and the ThinkPad L series, aimed at budget-conscious users. Additionally, there are the ThinkPad E series for small businesses and the ThinkPad X1 series, which features premium designs and advanced technology. Each series caters to different user needs, from casual use to professional performance.