PLTW Computer Science Principles 1.1

A "trigger" from the user that causes a specific part of the program to execute. → Event

A list of small specific tasks to be completed in the scrum method of software development.

Stores condition true yet; reset before iteration and raised during iteration. → One-way Flag

A group of instructive code that exists as an independent unit, easy to use with other code.

Stores a list of values built up over time and remembers separate individual values.

instructions. In Scratch it is a single stack of blocks belonging to one sprite → Script

The effect that a program has on its environment.

Prioritized list of user stories, both short and long-term goals of a software development team

A set of instructions grouped together to do something to or with an object.

A step-by-step procedure, like a recipe, but often involving decisions.

# of transistors that can fit on a chip doubles every 1-2 yrs until impossible → Phishing

The part of the computer that executes one instruction at a time.

Data that is used by a program.

Stores a value that will not change over the course of the entire program. → Fixed Variable

To run a program or a single instruction. → Output

Maintains a running total.

Details in part of program/programmers working on other part don't know about them→Iteration

Evaluates to either true or false; used in the conditional of an if-structure.

Stores input info about a program's state/changes unpredictably. → One-way Flag

Stores one item from a list at a time during iteration.

Repeating a step-by-step procedure several times;

Precise rules defining how the letters and punctuation in programming are to be used together.

Provides a way to create, run, and debug the program all within one application. → Iteration

Describe why a variable is being used in a program. → Stepper Variable

Part of a program that causes an error or undesired output. → Bug

Shows the ways that a program could progress from each state to other states.

A graphics object that can be moved on top of or behind a background. → Script

the process of figuring out why code doesn't behave as expected and making it work as desired.

A piece of code that responds to an event. → Modular Code

An outline of the basic ideas behind how algorithms will work.