Article in English: Laptop computers run on batteries that can deplete rapidly, especially if you're using your laptop intensively. Unless you're somewhere remote or foreign where you absolutely have to go without, it's better to leave your laptop plugged in. They're called "laptops" because they can go on your lap, but that doesn't mean that it's always the best or right place. Try to find a comfortable angle for your wrists and hands - this might mean moving the laptop around until you find the best position for you. Don't place your laptop on soft, fuzzy or shaggy surfaces that can block its vents. Most laptops have fan vents located on the sides and bottom that should be left unblocked for the laptop to run. Most laptops have some type of clasp or latch which allows the screen to open.  If the laptop won't open, don't try to force it! Look for a latch instead. You shouldn't have to force the screen open. Do not pull back the lid too far. A 45 degree obtuse angle is the most the laptop should be open to. The lid or hinge mechanism may be damaged or broken if pulled back any further. On most laptops, the power button is located slightly behind the keyboard. The power button is usually marked with the universal symbol for 'power on', a circle with a line going halfway through it. Since laptops are designed for portability as well as computing power, your laptop may have specialized hardware that will cause it to take longer to boot up than a desktop or smart phone. On most computers, this is a flat, touch-sensitive area called a trackpad which will allow you to use your finger as your mouse. Simply slide one finger on the trackpad area to move the cursor.  Many trackpads are multi-touch - using multiple fingers will produce different user interface actions than using just one. Experiment with your laptop by dragging one, two or three fingers across it and trying different 'gestures' or movements with your fingers. Lenovo laptops may use a small, red joystick-like button called a "trackpoint" located in the middle of the...

Summary in Vietnamese:
Nếu bạn ở nhà thì nên cắm điện máy tính xách tay để sử dụng. Đặt đế của máy tính xách tay lên bàn, phía trước mặt nếu bạn đang ngồi. Mở màn hình lên cho đến khi bạn cảm thấy vừa tầm. Tìm nút nguồn và mở máy. Chờ máy khởi động. Sử dụng thiết bị điều hướng của máy tính xách tay. Sử dụng phím bên trái của trackpad như nút chuột trái. Sử dụng phím bên phải của trackpad như nút chuột phải. Tìm ổ đĩa quang trên máy tính xách tay.