3.1.1 Computer architecture - 3.1.2 Von Neumann architecture

What is the primary function of the memory unit in the Von Neumann architecture?

• To store data and instructions for processing.

• To execute arithmetic operations directly.

• To manage input and output devices.

• To control the flow of electricity in the system.

Describe the role of the control unit in a computer system.

• The control unit is responsible for the physical design of the computer hardware.

• The control unit stores data temporarily for quick access.

• The control unit directs the operation of the processor and coordinates the activities of other components in a computer system.

• The control unit manages the power supply of the computer.

What operations are performed by the arithmetic logic unit (ALU)?

• The ALU performs arithmetic and logical operations.

• The ALU is responsible for memory storage operations.

• The ALU only performs addition and subtraction.

• The ALU executes input/output operations.

How do input/output operations function in the Von Neumann architecture?

• Input/output operations in Von Neumann architecture function through a shared bus system connecting the CPU, memory, and I/O devices.

• I/O devices operate independently of the CPU and memory in Von Neumann architecture.

• Input/output operations are handled exclusively by the CPU without any bus system.

• Data is transferred between I/O devices and memory using a direct connection without a bus.

Explain the stored program concept in computer architecture.

• Only data can be stored in memory, not instructions.

• The stored program concept limits program execution to static sequences.

• Instructions must be stored separately from data.

• The stored program concept allows instructions and data to be stored in the same memory, enabling dynamic program execution and flexibility.

What is the purpose of the data bus in a computer system?

• The purpose of the data bus is to transfer data between the computer's components.

• To store data permanently in the computer's memory.

• To manage the power supply of the computer.

• To connect the computer to the internet.

How does the memory unit interact with the control unit?

• The control unit and memory unit operate independently without interaction.

• The memory unit controls the execution of instructions in the CPU.

• The control unit interacts with the memory unit by sending signals to fetch or store data.

• The control unit retrieves data from the hard drive directly.

What types of data can the arithmetic logic unit process?

• Audio data (sound waves)

• Text data (strings)

• Image data (pixels)

• Numerical data (integers, floating-point) and logical data (boolean values)

In what way do input/output operations affect system performance?

• Input/output operations significantly impact system performance by affecting data transfer speed and responsiveness.

• Input/output operations improve system performance by reducing data transfer time.

• Input/output operations have no effect on system performance.

• Input/output operations only affect visual graphics rendering.

What is the significance of the stored program concept for modern computing?

• It reduces the need for hardware components in computing.

• It enables flexibility and efficiency in executing programs by storing instructions in memory.

• It allows programs to run without any memory requirements.

• It simplifies the programming process by eliminating the need for coding.