APCSP UNIT 3

Input

Data that are sent to a computer for processing by a program. Can come in a variety of forms,

such as tacotile interaction, audio, visuals, or text.

Output

Any data that are sent from a program to a device. Can come in a variety of forms, such as tactile

interaction, audio, visuals, or text.

User Interface

The inputs and outputs that allow a user to interact with a piece of software. User interfaces can

include a variety of forms such as buttons, menus, images, text, and graphics.

Event Driven Programming

Some program statements run when triggered by an event, like a mouse click or a key press.

Program

A collection of program statements. Programs run (or “execute”) one command at a time.

Program Statement

A command or instruction. Sometimes also referred to as a code statement.

Sequential Programming

program statements run in order, from top to bottom

Comment

Form of program documentation written into the program to be read by people and which do not

affect how a program runs

Fault Tolerant

Can continue to function even in the event of individual component failures. This is important

because elements of complex systems like a computer network fail at unexpected times, often in

groups.

Debugging

Finding and fixing problems in an algorithm or program

Documentation

A written description of how a command or piece of code works or was developed

Development Process

The steps or phases used to create a piece of software. Typical phases include investigating,

designing, prototyping, and testing.

Pair Programming

A collaborative programming style in which two programmers switch between the roles of writing

code and tracking or planning high level progress.