Lesson 1.1 Vocab - CSE

A function of an application or user interface.

• event

• feature

  
  

• component

A function or artifact in an app that you can add in Design view of MIT App Inventor. Examples of components are: Canvas, Camera, Label, Slider, Sound, Horizontal arrangement, Button.

• component

• feature

• procedure

An action or occurrence that happens during runtime that will trigger a response or behavior by the software. Can be user input, such as clicking a button, or external, such as a device receiving an SMS text message.

• iteration

• feature

• event

In MIT App Inventor, a control block that looks for inputs or events to know when to perform a specific action.

• procedure

• event handler

• output

A sequence of actions or instructions to follow in solving a problem or accomplishing a task. Also called subprogram, a procedure is a group of statements that may be used at one or more points in a computer program. In MIT App Inventor, many commonly used procedures (procedure blocks) are premade.

• procedure

• input

• component

Information or signals entered into a computer system. Examples are buttons, keys on a keyboard, touch screens, and accelerometers.

• debug, debugging

• input

• output

Information or signals produced or delivered by a computer system

• output

• debug, debugging

• iteration

To identify errors or bugs in computer hardware or programs and fix them.

• variable

• iteration

• debug, debugging

A process of repeating a set of instructions a specified number of times or until a condition is met, such as in a repetition of a process or a newer version of development in computer science.

• variable

• iteration

• argument

The smallest unit of data storage that a program can use. A variable contains known or unknown information referred to as a “value.” Two types are global and local.      

• string

• argument

• variable