Unit 3/4/5 - Intro to App Design/ Variables, Conditionals, and Functions/ Data

Question 1

User Interface

Answer 1

Inputs/outputs that allow a user to interact w/ a piece of software.
(ex. buttons, menus, images, text, and graphics.)

Question 2

Input

Answer 2

data sent to a computer for processing by a program.
(ex. tactile interaction, audio, visuals, or text.)

Question 3

Output

Answer 3

any data that are sent from a program to a device. (ex. tactile interaction, audio, visuals, or text.)

Question 4

Program Statement

Answer 4

a command or instruction. (or code statement.)

Question 5

Program

Answer 5

a collection of program statements.

(Programs run (or “execute”) one command at a time.)

Question 6

Sequential Programming

Answer 6

program statements run in order (top to bottom.)

Question 7

Event Driven Programming

Answer 7

program statements run when triggered by an event,

(ex. mouse click or a key press)

Question 8

Documentation

Answer 8

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

Question 9

Comment

Answer 9

form of program documentation written into the program to be read by people (does not affect how a program runs.)

Question 10

Pair Programming

Answer 10

a collaborative programming style

(two programmers switch between the roles of writing code and tracking or planning high level progress)

Question 11

Debugging

Answer 11

Finding and fixing problems in an algorithm/ program.

Question 12

Development Process

Answer 12

steps/phases used to create a piece of software. (investigating, designing, prototyping, and testing)

Question 13

Event

Answer 13

associated with an action and supplies input data to a program.
(ex. a key is pressed, a mouse is clicked, a program is started)

Question 14

Expression

Answer 14

a combo of operators and values that evaluates to a single value

Question 15

Assignment Operator

Answer 15

a symbol (usually “=”) used to assign a value to a variable or property

allows a program to change the value represented by a variable

Question 16

Variable

Answer 16

a named reference to a value that can be used repeatedly throughout a program.

Question 17

String

Answer 17

an ordered sequence of characters.

Question 18

Boolean Value

Answer 18

a data type that is either true or false.

Question 19

Comparison Operators

Answer 19

<, >, <=, >=, ==, != indicate a Boolean expression

Question 20

Logical Operator

Answer 20

NOT, AND, and OR, which evaluate to a Boolean value.

Question 21

Conditional Statement

Answer 21

affects the sequential flow of control by executing different statements based on the value of a Boolean expression.

Question 22

Function

Answer 22

a named group of programming instructions. ( “procedure”.)

Question 23

Function Call

Answer 23

a command that executes the code within a function

Question 24

Metadata

Answer 24

data about data

Question 25

Citizen Science

Answer 25

scientific research conducted in whole or part by distributed individuals, (many not be scientists, who contribute relevant data to research using their own computing devices.)

Question 26

Cleaning Data

Answer 26

a process that makes the data uniform without changing its meaning (e.g., replacing all equivalent abbreviations, spellings, and capitalizations with the same word).

Question 27

Correlation

Answer 27

relationship btwn two pieces of data, typically referring to the amount that one varies in relation to the other.

Question 28

Crowdsourcing

Answer 28

the practice of obtaining input/ information from a large number of people via the Internet.

Question 29

Information

Answer 29

the collection of facts and patterns extracted from data

Question 30

Data Bias

Answer 30

data that does not accurately reflect the full population or phenomenon being studied

Question 31

Data Filtering

Answer 31

choosing a smaller subset of a data set to use for analysis (ex. eliminating / keeping only certain rows in a table)