AP Computer Science Principles UNIT 3 Assessment

Algorithm

A precise sequence of instructions for processes that can be executed by a computer and are implemented using programming languages.

Low level programming language

A programming language that captures only the most primitive operations available to a machine. Anything that a computer can do can be represented with combinations of low level commands.

High level programming language

A programming language with many commands and features designed to make common tasks easier to program. Any high level functionality is encapsulated as combinations of low level commands.

Iterate

To repeat in order to achieve, or get closer to, a desired goal.

Selection

A generic term for a type of programming statement (usually an if-statement) that uses a Boolean condition to determine, or select, whether or not to run a certain block of statements.

Sequencing

Putting commands in correct order so computers can read the commands.

Turtle Programming

a classic method for learning programming with commands to control movement and drawing of an on-screen robot called a "-----". The ----- hearkens back to early implementations in which children programmed a physical robot whose dome-like shape was remini

Abstraction

a simplified representation of something more complex. --------s allow you to hide details to help you manage complexity, focus on relevant concepts, and reason about problems at a higher level.

Function

a named group of programming instructions. ------ are reusable abstractions that reduce the complexity of writing and maintaining programs

Top Down Design

a problem solving approach (also known as step-wise design) in which you break down a system to gain insight into the sub-systems that make it up.

API

a collection of commands made available to a programmer

Documentation

a description of the behavior of a command, function, library, API, etc.

Hexadecimal

A base-16 number system that uses sixteen distinct symbols 0-9 and A-F to represent numbers from 0 to 15.

Library

a collection of commands / functions, typically with a shared purpose

Parameter

An extra piece of information that you pass to the function to customize it for a specific need.

Loop

a programming construct that repeats a group of commands.

Iteration

loop" by another name - the repetition of a statement, process, or procedure.

For Loop

A particular kind of looping construct provided in many languages. Typically, a --- loop defines a counting variable that is checked and incremented on each iteration in order to loop a specific number of times.