Chapter 2 - Data, Expressions, Variables and I/O

Question 1

Atomic Data

Answer 1

Smallest unit of data a computer program can define

Question 2

Compound Data

Answer 2

Data that can be subdivided into smaller pieces, which can be organized

Eg. a list

Question 3

Bits

Answer 3

0’s and 1’s that make up binary code

Question 4

Data Type

Answer 4

Tells a computer how to interpret binary bits

Question 5

Integer Data

Answer 5

Positive or negative whole numbers, or zero

Atomic data type

Question 6

Floating-Point Data

Answer 6

Real numbers

Atomic data type

Question 7

Boolean Data

Answer 7

True / False

*Capitalization matters!

Atomic data type

Question 8

String Data

Answer 8

Sequences of characters and are usually used to store text

Compound data type

Question 9

List Data

Answer 9

Sequences of data items

Each item can be of any data type

Compound data type

Question 10

Dictionary Data

Answer 10

Key-value pairs in no particular order

Compound data type

Question 11

Expressions

Answer 11

Combinations of data and operators

Question 12

Operators

Answer 12

Write expressions that compute new values from existing data

Question 13

Value of the Expression

Answer 13

Result of the expression

Question 14

Literal

Answer 14

Number or string written into a program

Question 15

Integer Literal

Answer 15

Any number written without a decimal point

Question 16

Floating-Point Literal

Answer 16

Any number written with a decimal point

Question 17

String Literal

Answer 17

Enclosing a string within quotations

Question 18

Identifiers

Answer 18

Names of variables

Question 19

Operands

Answer 19

Data items that operators operate

Question 20

Type Coercion

Answer 20

Data types converted into more common types by Python

Question 21

Console

Answer 21

Default location for text inputs and outputs

Input comes from the keyboard

Output goes to the screen