9.2.4. General Model of a Control Unit

Try these first

1. 1.

   What is the primary role of the Control Unit?

   Hint

   Think about how the CPU executes its tasks.

2. 2.

   Name one input to the Control Unit.

   Hint

   Consider what influences the Control Unit's decisions.

3. 3.

   What does the Control Unit primarily do?

   • A. Execute programs
   • B. Generate control signals
   • C. Store instructions

   Hint

   Remember what the Control Unit manages.

4. 4.

   True or False: The Control Unit executes arithmetic operations.

   • True
   • False

   Hint

   Think about the role of the Arithmetic Logic Unit.

5. 5.

   Describe a situation where an improperly set flag affects the execution of an instruction. What would be the consequences?

   Hint

   Think about how flags influence decisions in programming.

6. 6.

   Illustrate a timing diagram for an instruction that includes loading data from memory and performing an addition operation. Explain the sequence of events.

   Hint

   Consider how control signals interact across those steps in terms of timing.