Chapter 2 Key Terms

Question 1

Program Development Cycle

Answer 1

A structured process that outlines the steps to effectively create, maintain, and update software applications.

Question 2

Pseudocode

Answer 2

Fake code. It is not meant to be read and executed by a computer.

Question 3

Flowchart

Answer 3

A diagram that shows the steps in the programming process.

Question 4

Input

Answer 4

The data that is retrieved from users and other devices.

Question 5

Process

Answer 5

The functioning or running of a computer system.

Question 6

Output

Answer 6

Information that is given by the computer. Output can come in the form of an image, text, audio etc.

Question 7

Print

Answer 7

This function is used to show the output from the computer onto the screen.

Question 8

String

Answer 8

A sequence of data that is used as characters. Characters may be letters, digits, symbols, or spaces.

Question 9

Comments

Answer 9

Notes of explanation within a program.

Question 10

#

Answer 10

A hashtag indicates the start of a comment. This symbol will not be executed by the computer.

Question 11

Variables

Answer 11

Name that represents a value stored in the computer memory.

Question 12

Assignment

Answer 12

Is used to create a variable and make it reference data.

Question 13

Rules for Variable Names

Answer 13

Name cannot be a Python key word.
Cannot have any spaces.
First character must be a letter or an underscore.
After the first character letters, digits and underscores can be used.
Names are case sensitive.

Question 14

Data Type

Answer 14

Categorized value in memory.

Question 15

str

Answer 15

An abbreviation used to refer to a string data type or a class that represents strings in other languages.

Question 16

input

Answer 16

Information that is provided to a program for processing. It can come from a user or an external device.

Question 17

int

Answer 17

An abbreviation used to refer to the integer data type or a class that represents integers in other languages.

Question 18

float

Answer 18

An abbreviation used to refer to the floating-point data type or a class that represents floating-point numbers.

Question 19

List and Explain the Math Operators

Answer 19

Tools for performing calculations.
/ Operator that performs floating division.
// Operator that performs integer division.

Question 20

Order of Precedence

Answer 20

The rules that determine the sequence of how operators work through expressions.

Question 21

\

Answer 21

Used as an escape character. It shows that the character following it has a special meaning.

Question 22

Concatenation

Answer 22

The process of combining two or more strings together to create single, longer string.

Question 23

Escape Character

Answer 23

Character in a sequence that does not represent itself when used in a string.

Question 24

F-strings

Answer 24

Allow programmers to embed expressions inside string literals that are readable.

Question 25

Named Constants

Answer 25

The value that will remain the same throughout the execution process.

Question 26

import

Answer 26

A statement that brings external code, modules, or libraries into a program.

Question 27

turtle

Answer 27

Also referred to as Turtle Graphics, this concept allows programmers to draw graphics. The turtle is the cursor which moves around the virtual canvas.