AQA A-Level Computer Science –
Fundamentals of Computer
Organization and Architecture Exam
Questions & Answers (Grade A+)
What is the stored program concept? -
correct answer ✅The idea that machine code instructions and
data are stored together in main memory and fetched and executed
sequentially by the processor.
How does the stored program concept work? -
correct answer ✅Instructions are fetched from memory, decoded,
and executed in order, with the CPU performing arithmetic and
logical operations.
Who introduced the stored program concept? -
correct answer ✅John von Neumann.
Why is the stored program concept important? -
correct answer ✅It allows programs to be treated as data,
enabling computers to store and modify instructions easily.
What is the role of the processor? -
correct answer ✅To execute instructions, perform calculations,
and control all other components of the computer.
, AQA A-Level Computer Science –
Fundamentals of Computer
Organization and Architecture Exam
Questions & Answers (Grade A+)
What is the arithmetic logic unit (ALU)? -
correct answer ✅The component of the CPU that performs
arithmetic and logical operations.
What is the control unit (CU)? -
correct answer ✅The component that directs the operation of the
processor by controlling data flow and interpreting instructions.
What is the clock? -
correct answer ✅A timing device that synchronises all operations
in the CPU by generating regular pulses.
What are general-purpose registers? -
correct answer ✅Small, fast storage locations in the CPU used for
temporary data and intermediate calculations.
What are dedicated registers? -
correct answer ✅Registers used for specific control or memory
functions within the CPU.
Fundamentals of Computer
Organization and Architecture Exam
Questions & Answers (Grade A+)
What is the stored program concept? -
correct answer ✅The idea that machine code instructions and
data are stored together in main memory and fetched and executed
sequentially by the processor.
How does the stored program concept work? -
correct answer ✅Instructions are fetched from memory, decoded,
and executed in order, with the CPU performing arithmetic and
logical operations.
Who introduced the stored program concept? -
correct answer ✅John von Neumann.
Why is the stored program concept important? -
correct answer ✅It allows programs to be treated as data,
enabling computers to store and modify instructions easily.
What is the role of the processor? -
correct answer ✅To execute instructions, perform calculations,
and control all other components of the computer.
, AQA A-Level Computer Science –
Fundamentals of Computer
Organization and Architecture Exam
Questions & Answers (Grade A+)
What is the arithmetic logic unit (ALU)? -
correct answer ✅The component of the CPU that performs
arithmetic and logical operations.
What is the control unit (CU)? -
correct answer ✅The component that directs the operation of the
processor by controlling data flow and interpreting instructions.
What is the clock? -
correct answer ✅A timing device that synchronises all operations
in the CPU by generating regular pulses.
What are general-purpose registers? -
correct answer ✅Small, fast storage locations in the CPU used for
temporary data and intermediate calculations.
What are dedicated registers? -
correct answer ✅Registers used for specific control or memory
functions within the CPU.
