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App Inventor
| Question | Answer |
|---|---|
| Properties | Memory slots for storing information about the component. |
| Behavior | How the app should respond to events. |
| Functions | Things you can do to or with a component. |
| Call | To make a function happen. |
| Event handler | To call an event and the set of functions performed. |
| Timer event | An event triggered by the passing of time. |
| Variables | Information stored in memory slots. |
| Main types of components | Visible and non-visible. |
| Non-visible components | Components you can't see. |
| Visible components | Components you can see. |
| User interface | Buttons, text boxes, and labels. |
| Components designer | Specifies the objects of the app. |
| Blocks editor | Programs how the app responds to user and external events. |
| Linear sequence | A traditional app follows the linear sequence such as A, B, C. |
| Persistent data | Data that is retained even after an app is closed. |
| Web-enabled apps | Apps that communicate with the Web by sending requests to web service APIs. |