Laptop computers are portable devices that combine the functionality of a desktop computer with the convenience of mobility. They typically feature a built-in screen, keyboard, and battery, allowing users to work or play anywhere. Laptops are widely used for various tasks, including browsing the internet, creating documents, and running software applications. These devices come in various sizes and specifications, catering to different needs. Popular brands like Dell, HP, and Apple offer a range of models, from lightweight ultrabooks to powerful gaming laptops. With advancements in technology, modern laptops often include features like high-resolution displays, fast processors, and long battery life.