The laptop computer(便携式电脑) is popular all over the world because it is small enough for us to put on the upper part of our legs. People use them on trains and airplanes, in airports and hotels. These computers connect people to their workplace. In the United States today, they also connect students to their classmates. Westlake College in Virginia will start a laptop computer program that allows students to do schoolwork anywhere they want. Within five years, each of the 1 500 students at the college will get a laptop. Westlake College has started a large computer program for its students. With laptop computers, the students will be connected not only to the Internet but also to libraries. In addition, they can use e mail to 'speak' with their teachers, their classmates, and their families. However, the most important part of the laptop computer program is that students will be able to use computers without going to computer labs. They can work with it at home, in a fast-food restaurant or under the trees—anywhere at all. At Westlake College, more than 90 percent of the students use computers, either desktop(台式) or laptop, but the laptop users can work and study in any of the places. Just as one of the Westlake teachers said, 'Here we are in the middle of the city and we're giving students a window on the world'. The laptop computer is becoming more and more popular because it is ______.