Lipids are fats. Many foods contain fats. Most meat, poultry, seafood, and even fish. Most dairy products contain fats unless stated nonfat. In their natural state dairy contains fat.
Microsoft Windows (or simply Windows) is a metafamily of graphical operating systems developed, marketed, and sold by Microsoft. It consists of several families of operating systems, each of which cater to a certain sector of the computing industry.
A window is an opening in a wall, door, roof or vehicle that allows the passage of light, sound, and/or air. Modern windows are usually glazed or covered in some other transparent or translucent material, a sash set in a frame in the opening; the sash and frame are also referred to as a window.