CPU Architecture Quiz

What is the primary function of the Control Unit (CU) within the CPU?

• Performing arithmetic and logical operations

• Managing the clock and decoding instructions

• Storing frequently used data

• Holding the address of the next instruction to be executed

Which component of the CPU is responsible for performing mathematical and logical operations?

• Control Unit (CU)

• Cache Memory

• Arithmetic Logic Unit (ALU)

• Program Counter

What is the role of cache memory in the CPU?

• To perform arithmetic operations

• To decode instructions

• To store a small amount of fast memory on the CPU to help deal with bottlenecks caused by slow instruction retrieval from main memory

• To hold the address of the next instruction to be executed

Which register holds the address of the next instruction to be executed?

• Memory Address Register (MAR)

• Memory Data Register (MDR)

• Program Counter (PC)

• Accumulator

What is the function of the Memory Address Register (MAR)?

• To store the data to be processed

• To hold the address of the instruction or data to be fetched or stored

• To perform logical operations

• To manage the clock signals

Which register holds the data that has been fetched from memory?

• Program Counter (PC)

• Memory Address Register (MAR)

• Memory Data Register (MDR)

• Current Instruction Register (CIR)

What is the function of the Current Instruction Register (CIR)?

• To hold the address of the next instruction to be executed

• To store the data that has been fetched from memory

• To hold the currently executing instruction

• To store the results of any calculation

Where are the results of calculations performed by the CPU stored?

• Program Counter (PC)

• Memory Address Register (MAR)

• Memory Data Register (MDR)

• Accumulator

What is the primary function of the accumulator in a CPU?

• To store the address of the next instruction to be executed

• To temporarily store the results of calculations performed by the Arithmetic Logic Unit (ALU)

• To manage the control signals within the CPU

• To hold the current instruction being processed

In the context of CPU architecture, what does the term "bottleneck" refer to?

• A component that performs arithmetic operations

• A situation where the CPU's performance is limited by the speed of another component, such as main memory

• A type of register that holds instructions

• A fast type of memory located on the CPU