ThinkPad laptops have long been associated with boxiness, durability, good battery life and a broad appeal 
for business users and schools. Lenovo, which bought the ThinkPad brand, is stripping away some of the weight of the ThinkPad with a new lightweight model that falls into the Ultrabook category.
The China-based PC maker is introducing new ThinkPad X, T, W and L Series models, including the lightweight X230, and the ThinkPad X230t, a 12-inch convertible tablet that comes with a fully attached keyboard.
For the most part, these new entrants are still geared toward the professional market. But Lenovo is looking to appeal to consumers, too.
