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.
Microsoft Windows is the operating system that is installed on most computers. An operating system is the software that runs your computer and makes it think. Application software (a.k.a. programs) such as a word processing, spreadsheet. programs, or games runs on top of the operating system.