29.1. Three Bus Architecture

Try these first

1. 1.

   What is the primary advantage of using a three bus architecture over a single bus architecture?

   Hint

   Consider how data flows in both architectures.

2. 2.

   Name one function of the ALU.

   Hint

   Think about what calculations a computer often needs to do.

3. 3.

   What is the main purpose of buses A and B in three bus architecture?

   • To store data
   • To send outputs
   • To transfer inputs to the ALU

   Hint

   Think about where calculations start.

4. 4.

   In a three bus architecture, the ALU writes its output to which bus?

   • Bus A
   • Bus B
   • Bus C

   Hint

   Which bus is designated for data outputs?

5. 5.

   Imagine redesigning the three bus architecture to improve upon it further. What techniques could be employed to enhance performance, and how do they compare to existing architectures?

   Hint

   Think about how more highways might help manage more traffic.

6. 6.

   Discuss the trade-offs of implementing a three bus architecture versus sticking with a dual bus architecture in a new CPU design.

   Hint

   Consider both performance improvements and design complexity.