Computer Data Representation,
Types, and CPU Architecture
Fundamentals Exam Questions &
Answers (Grade A+)
What is the purpose of computer data representation -
correct answer ✅To store and process information in a way
computers can handle efficiently, accurately, and quickly.
What are the main tradeoffs in computer data representation -
correct answer ✅Accuracy, efficiency, speed, compatibility, and
simplicity.
What 5 data types can most modern CPUs recognize and process -
correct answer ✅Integers, decimal-point numbers,
characters/text, Boolean values, and memory
addresses/instructions.
Why do computers use binary representation -
correct answer ✅Because computer hardware naturally works
with two states, such as on/off or high/low voltage.
What are the two digits used in binary -
correct answer ✅0 and 1
,Computer Data Representation,
Types, and CPU Architecture
Fundamentals Exam Questions &
Answers (Grade A+)
What is ASCII -
correct answer ✅An older character encoding system that uses 7
bits and represents 128 characters.
What is a limitation of ASCII -
correct answer ✅It can only represent a small set of mostly English
characters and symbols.
Why is Unicode needed -
correct answer ✅Because it can represent many world languages,
symbols, and modern characters that ASCII cannot.
What is Unicode -
correct answer ✅A character encoding system that supports a
much larger set of characters than ASCII.
Why is Boolean algebra used in computing -
correct answer ✅Because computers use true/false logic for
decision-making and digital circuits.
, Computer Data Representation,
Types, and CPU Architecture
Fundamentals Exam Questions &
Answers (Grade A+)
What are the basic Boolean operations -
correct answer ✅AND, OR, NOT
What does the AND operation mean -
correct answer ✅Both inputs must be true.
What does the OR operation mean -
correct answer ✅At least one input must be true.
What does the NOT operation mean -
correct answer ✅It reverses the truth value.
What is decimal -
correct answer ✅A base-10 number system that uses digits 0
through 9.
What is binary -
correct answer ✅A base-2 number system that uses only 0 and 1.
Types, and CPU Architecture
Fundamentals Exam Questions &
Answers (Grade A+)
What is the purpose of computer data representation -
correct answer ✅To store and process information in a way
computers can handle efficiently, accurately, and quickly.
What are the main tradeoffs in computer data representation -
correct answer ✅Accuracy, efficiency, speed, compatibility, and
simplicity.
What 5 data types can most modern CPUs recognize and process -
correct answer ✅Integers, decimal-point numbers,
characters/text, Boolean values, and memory
addresses/instructions.
Why do computers use binary representation -
correct answer ✅Because computer hardware naturally works
with two states, such as on/off or high/low voltage.
What are the two digits used in binary -
correct answer ✅0 and 1
,Computer Data Representation,
Types, and CPU Architecture
Fundamentals Exam Questions &
Answers (Grade A+)
What is ASCII -
correct answer ✅An older character encoding system that uses 7
bits and represents 128 characters.
What is a limitation of ASCII -
correct answer ✅It can only represent a small set of mostly English
characters and symbols.
Why is Unicode needed -
correct answer ✅Because it can represent many world languages,
symbols, and modern characters that ASCII cannot.
What is Unicode -
correct answer ✅A character encoding system that supports a
much larger set of characters than ASCII.
Why is Boolean algebra used in computing -
correct answer ✅Because computers use true/false logic for
decision-making and digital circuits.
, Computer Data Representation,
Types, and CPU Architecture
Fundamentals Exam Questions &
Answers (Grade A+)
What are the basic Boolean operations -
correct answer ✅AND, OR, NOT
What does the AND operation mean -
correct answer ✅Both inputs must be true.
What does the OR operation mean -
correct answer ✅At least one input must be true.
What does the NOT operation mean -
correct answer ✅It reverses the truth value.
What is decimal -
correct answer ✅A base-10 number system that uses digits 0
through 9.
What is binary -
correct answer ✅A base-2 number system that uses only 0 and 1.
