COA Lab
Q1. Which of the following best describes the role of a Control Unit (CU) in a processor?
A) Executes mathematical operations
B) Decodes instructions and generates control signals
C) Stores data in memory
D) Manages data transfers between the ALU and registers
Q2. In a control unit, which component directly generates the control signals for memory read or write operations?
A) ALU
B) Instruction Register
C) Control Logic Circuits
D) Program Counter
Q3. In the execution of an ADD instruction, what is the role of the control unit?
A) Direct the Program Counter to the next instruction
B) Activate the ALU to perform the addition operation
C) Fetch the data from memory
D) Store the result in the ALU
Q4. In the design of a Control Unit, which of the following does the opcode field of an instruction specify?
A) The address of the next instruction
B) The type of operation to be performed
C) The location of the data
D) The register to store the result
Q5. When designing a Control Unit, which component is responsible for decoding the instruction?
A) Memory Unit
B) ALU
C) Instruction Register
D) Control Logic
