13.1. Introduction

A graphical user interface (GUI) allows a user to interact visually with a program. A GUI (pronounced “GOO-ee”) gives a program a distinctive look-and-feel.

Look-and-Feel Observation 13.1

Consistent user interfaces enable a user to learn new applications faster because the applications have the same look-and-feel.

As an example of a GUI, consider Fig. 13.1, which shows an Internet Explorer Web browser window containing various GUI controls. Near the top of the window, there is a menu bar containing the menus File, Edit, View, Favorites, Tools and Help. Below the menu bar is a set of buttons, each with a defined task in Internet ...

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