Chapter 2

Question 1

A mistake in a program that does not prevent the program from running but causes it to produce incorrect results.

Answer 1

Logic Error

Question 2

The process of finding and correcting errors in a program.

Answer 2

Debugging

Question 3

The process of designing, writing, correcting, testing, and debugging software.

Answer 3

Program Development Cycle

Question 4

The process of designing a program can be summarized in two steps:

Answer 4

1. Understand the task that the program is to perform.
2. Determine the steps that must be taken to perform the task.

Question 5

An informal language that has no syntax rules, and is not meant to be compiled or executed.

Answer 5

Pseudocode

Question 5

A single function that a program must perform in order to satisfy the customer.

Answer 5

Software Requirement

Question 5

A set of well-defined logical steps that must be taken to perform a task.

Answer 5

Algorithm

Question 5

What are the three types of symbols in the flowchart?

Answer 5

Ovals, parallelograms, and rectangles

Question 5

A diagram that graphically depicts the steps that take place in a program.

Answer 5

Flowchart

Question 5

In a flowchart, the oval symbol is located?

Answer 5

At the top and bottom of the flowchart

Question 6

The symbol that marks a program’s ending point in a flowchart.

Answer 6

End terminal

Question 6

The oval symbols that designate the beginning and end of a flowchart.

Answer 6

Terminal symbols

Question 6

The symbol that marks a program’s beginning point in the flowchart.

Answer 6

Start terminal

Question 7

Between the terminal symbols are parallelograms which are used for?

Answer 7

Input symbols and out symbols

Question 8

A rectangle symbol in a flowchart represents a process are known as?

Answer 8

Processing symbols

Question 9

A parallelogram symbol in flowcharts represents an input operation and are known as?

Answer 9

Input symbol

Question 10

A parallelogram shaped symbol in flowcharts represents an output operation and are known as?

Answer 10

Output symbol

Question 11

A circle shaped symbol that connects the pieces of a flowchart that has been broken into segments.

Answer 11

Connector symbol

Question 12

A home plate shaped symbol that connects the pieces of a flowchart that appear on different pages.

Answer 12

Off-page connector symbol

Question 13

What value does the off-page connector symbol typically have listed?

Answer 13

Numerical

Question 14

What do the numerical values mean if a flow-chart has an off-page connector symbol?

Answer 14

The numerical value will indicate where the next process begins, so if start is on page one then the number 2 will be listed in the home plate shape symbol on page one indicating to look at page 2. On page 2 the home plate shape symbol will have listed page 1 because it is connected to the process on page 1.

Question 15

What do the oval symbols represent in a flowchart?

Answer 15

Designate the beginning and end of a flowchart and are called terminal symbols.

Question 16

What do the parallelogram symbols represent in a flowchart?

Answer 16

Designate input or output processes such as:

Input payRate
Display “The employee’s gross pay is $”, grossPay

Question 17

What do the rectangle symbols represent in a flowchart?

Answer 17

Designate a process that in not input or output but a process such as:

Set grossPay = hours * payRate

Question 18

What is the typical three step process a computer performs?

Answer 18

1. Input is received. 2. Some process is performed on the input. 3. Output is produced.

Question 19

This chart describes a program's input, processing, and output.

Answer 19

IPO Chart

Question 20

This structure is a set of statements that execute in the order that they appear in a program.

Answer 20

Sequence structure

Question 21

This structure is a logical design that controls the order in which a set of statements executes.

Answer 21

Control structure

Question 22

A string that is written into the code of program.

Answer 22

String literal

Question 23

A storage location in memory that is represented by a name.

Answer 23

Variable

Question 24

Summarize the three common rules for naming variables.

Answer 24

1. Variables must be one word. 2. Punctuation characters cannot be used. 3. First character of variable name cannot be a number.

Question 25

What is a string?

Answer 25

A sequence of characters that is used as data.

Question 26

What is a string literal?

Answer 26

A string that appears in the actual of a program.

Question 27

What two steps usually take place when a program prompts the user for input?

Answer 27

1. Program pauses and awaits the user to type input then hit enter. 2. When enter is pressed, the data that was typed is stored in the variable.

Question 28

A statement that sets a variable to a specific value.

Answer 28

Assignment statement

Question 29

A piece of data that is operated on by an operator.

Answer 29

Operand

Question 30

A statement that declares a variable's name and data type.

Answer 30

Variable Declaration