Question 1: Name two main components of a CPU that process data and instructions.

Answer: The ALU (Arithmetic Logic Unit) and the Control Unit.

Question 2: Describe the function of the Control Unit within a CPU in your own words.

Answer: The Control Unit directs the operation of the CPU by interpreting instructions and controlling the flow of data between the CPU and other components.

Question 3: List three components that are found on a CPU's motherboard and support its operation.

Answer: The cache, the system clock, and the memory controller.

Question 4: Explain what a cache is and why it is important for CPU performance.

Answer: A cache is a small, fast type of memory located close to the CPU that stores frequently used data and instructions, reducing access time and improving processing speed.

Question 5: Complete the following truth table for the AND logic gate:

Answer: {"A":[0,0,1,1],"B":[0,1,0,1],"Output":[0,0,0,1]}

Question 6: Complete the following truth table for the OR logic gate:

Answer: {"A":[0,0,1,1],"B":[0,1,0,1],"Output":[0,1,1,1]}

Question 7: Draw a simple logic circuit that uses an AND gate and an OR gate to produce a specific output based on two inputs.

Answer: A correct sketch would show two inputs feeding into both an AND gate and an OR gate, with the outputs of each gate shown clearly. The circuit should connect these outputs to an output indicator or terminal, demonstrating the logic flow.

Question 8: Sketch a diagram of the main parts inside a CPU, including the ALU, Control Unit, and registers. Label each part clearly.

Answer: A large blank space where students draw a block diagram with labeled sections for ALU, Control Unit, and registers, showing their relative positions within a CPU.

Question 9: Explain the purpose of the system clock in a CPU.

Answer: The system clock synchronizes all parts of the CPU, ensuring that operations happen in a coordinated and timely manner.

Question 10: Describe how the ALU and Control Unit work together during the execution of a calculation.

Answer: The Control Unit fetches instructions and sends signals to the ALU to perform calculations or logical operations. The ALU processes the data and sends the result back or to memory, while the Control Unit manages the sequence.

Question 11: Draw a diagram to illustrate how data flows from the memory to the CPU and back during processing.

Answer: A clear diagram should show memory connected to the CPU via data buses, with arrows indicating data transfer from memory to CPU and vice versa, including the roles of the control signals.