C+D - 1CP2 - 2.1.1 - Von Neumann Architecture

What is the primary concept behind the von Neumann architecture?

• Fixed-program computer

• Stored-program computer

• Quantum computer

• Mechanical computer

Which component of the von Neumann architecture is responsible for performing calculations and logical operations?

• Control Unit (CU)

• Memory Unit

• Arithmetic Logic Unit (ALU)

• Input and Output

In the von Neumann architecture, what is the role of the Program Counter (PC)?

• Stores the results of calculations

• Holds the memory address of the next instruction to be executed

• Temporarily holds data fetched from memory

• Directs the flow of data and instructions

What is the function of the Memory Data Register (MDR) in the von Neumann architecture?

• Stores the address of the memory location

• Temporarily holds data fetched from memory or waiting to be written back

• Directs the flow of data and instructions

• Synchronises operations by generating a steady pulse

Which of the following is NOT a component of the Central Processing Unit (CPU) in the von Neumann architecture?

• Control Unit (CU)

• Arithmetic Logic Unit (ALU)

• Onboard Cache

• Memory Address Register (MAR)

What is the primary purpose of registers in the von Neumann architecture?

• To store large amounts of data permanently

• To provide ultra-fast storage locations for specific purposes

• To allow communication between the user and the computer

• To store program instructions and data in binary form

During the fetch-execute cycle, what happens immediately after the instruction is fetched from memory?

• The instruction is executed

• The Program Counter (PC) is incremented

• The instruction is decoded

• The instruction is stored in the Accumulator (ACC)

Which register temporarily holds the data fetched from memory during the fetch-execute cycle?

• Program Counter (PC)

• Memory Address Register (MAR)

• Memory Data Register (MDR)

• Accumulator (ACC)

What is the role of the Control Unit (CU) in the von Neumann architecture?

• Performs calculations and logical operations

• Directs the flow of data and instructions

• Stores program instructions and data

• Allows communication between the user and the computer

In the von Neumann architecture, what is the function of the Accumulator (ACC)?

• Holds the memory address of the next instruction

• Stores the results of calculations performed by the ALU

• Temporarily holds data fetched from memory

• Directs the flow of data and instructions