31.2.3. Efficiency Analysis of Bus Configurations

Try these first

1. 1.

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

   Hint

   Remember the concept of addressing memory.

2. 2.

   What does the Memory Data Register (MDR) store temporarily?

   Hint

   Think about data transfer.

3. 3.

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

   • To store data temporarily
   • To hold memory addresses
   • To execute arithmetic operations

   Hint

   Think about where the computer looks to find data.

4. 4.

   In terms of complexity, which architecture requires more control signals?

   • True
   • False

   Hint

   Consider the implications of having more pathways.

5. 5.

   Given an operation that transfers data between multiple registers in a three bus architecture, outline the necessary control signals and how they differ from a single bus architecture.

   Hint

   Diagram the flow of data and control signal interactions for clarity.

6. 6.

   Design a scenario where switching from a single bus architecture to three bus architecture significantly improves execution time for a specific set of instructions. What would those instructions be?

   Hint

   Think through common programming tasks that involve repetitive data access.