The mass of a star can be determined by studying a. the wavelength of light emitted by the star. b. the color of the star. c. the distance between the star and Earth. 21. ANS: C 22. ANS: A 23.
(May 2010) (Learn how and when to remove this template message) In computing, an interface is a shared boundary across which two separate components of a computer system exchange information. The exchange can be between software, computer hardware, peripheral devices, humans and combinations of these.
User Interface. A user interface, also called a UI or simply an interface, is the means in which a person controls a software application or hardware device. A good user interface provides a user-friendly experience, allowing the user to interact with the software or hardware in a natural and intuitive way.