Evaluating Mathematical, Relational, and Logical Expressions

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What is the purpose of program files?

Store the data required to execute the program

Contain the data connectors within expressions

Contain the instructions to tell the computer what to do (correct)

Process the data during computations

In the expression 8 - 3, which of the following is the operator?

+

- (correct)

/

*

What is the purpose of logical operators?

Connect and process data

Determine an order of operations

Process mathematical data

Tell the computer what type of processing needs to be done (correct)

What is a resultant in an expression?

The answer that results when the operation is completed (D) Signup and view all the answers

What are operands in an expression?

Constants or variables that are processed by operators (C) Signup and view all the answers

Which of the following is an example of a numeric data type?

5,297 (C) Signup and view all the answers

What type of data includes whole numbers only?

Integers (B) Signup and view all the answers

Which data type is required for numeric calculations?

Real numbers (C) Signup and view all the answers

Which of the following is an example of character data?

'A' (A) Signup and view all the answers

What is the most common data type among numeric, character, and logical data?

Numeric data (A) Signup and view all the answers

What is the main characteristic of real numbers?

They include whole numbers and decimal parts (C) Signup and view all the answers

In character data, what do single digit numbers, letters, and special characters form?

String Data (A) Signup and view all the answers

What differentiates an upper case letter from a lower case letter in character data?

The computer treats them as different characters (C) Signup and view all the answers

Which values are included in logical data?

True and False (D) Signup and view all the answers

What is a rule regarding data type mixing in programming?

Data types cannot be mixed (D) Signup and view all the answers

What is the correct data type for the words True and False?

Logical data type (B) Signup and view all the answers

Which set of numbers does the character data type use?

All available characters (B) Signup and view all the answers

What happens if a user enters a value into a variable location that is not designated as numeric data type for calculations?

The computer will return an error message (A) Signup and view all the answers

How does the computer store data internally in memory locations?

Each memory location holds one value at a time (B) Signup and view all the answers

Where are data, information, or programs kept for future use if they need to be stored externally?

External storage medium like a hard disk drive (C) Signup and view all the answers

What is a constant in programming?

An alphabetical and/or numeric value that never changes during processing (D) Signup and view all the answers

Which of the following is a rule for naming variables?

All variable names must start with a letter of the alphabet or an underscore (A) Signup and view all the answers

In programming, what is the purpose of logical data?

To handle operations based on true or false conditions (A) Signup and view all the answers

Which term is often used interchangeably with 'identifier' in programming languages?

Variable (C) Signup and view all the answers

What type of data can constants represent in programming?

Any type of data—numeric, alphabetical, or special symbols (D) Signup and view all the answers

When evaluating a mathematical expression, what does the programmer use?

Integers and real numbers (B) Signup and view all the answers

Which type of expression involves relational operators?

Logical expressions (C) Signup and view all the answers

In evaluating a relational expression, what kind of values are utilized by the programmer?

Integers and real numbers (A) Signup and view all the answers

What type of expression involves both relational and logical operators?

Logical expressions (B) Signup and view all the answers

When dealing with character data, what type of expressions does a programmer typically write?

Character expressions (B) Signup and view all the answers

What operator is used to store the result of an expression in a memory location?

= (D) Signup and view all the answers

Which of the following is essential in a mathematical equation for computer use?

All variables, constants, and operators on the same line (C) Signup and view all the answers

When setting up a relational expression, what is its primary purpose?

Make decisions based on conditions (D) Signup and view all the answers

Which of the following is an incorrect requirement when setting up a numeric expression for computer use?

All variables, constants, and operators on different lines (B) Signup and view all the answers

In a computer expression, what does the equal (=) sign represent?

Result storage operation (C) Signup and view all the answers

When modifying a mathematical expression for computer use, what must be ensured about variables and constants?

They should be on the same line (C) Signup and view all the answers

What is the purpose of a relational expression in programming?

Make decisions based on conditions (C) Signup and view all the answers

When designing a numeric expression for a computer, what is the role of operators?

Link variables and constants (C) Signup and view all the answers

What is the significance of having all elements on the same line in a computer expression?

Reduces computational errors (C) Signup and view all the answers

In a mathematical equation used for computer processing, what does the equal (=) sign signify?