This disclosure relates to a computer including a computer host, a screen and a keyboard. The computer host includes a first side, a second side, a third side and a fourth side. The first side and the third side are located opposite to each other. The second side and the fourth side are located between the first side and the third side and are located opposite to each other. The screen includes a first connecting side and a second connecting side opposite to each other. The first connecting side of the screen is pivotably connected to the first side of the computer host. The keyboard is pivotably connected to the second connecting side of the screen.