29.2. Components of the Three Bus Architecture

Try these first

1. 1.

   What is the function of the program counter in a CPU?

   Hint

   Think about how instructions are sequenced.

2. 2.

   Name the three buses in the Three Bus Architecture.

   Hint

   Recall the titles of the buses mentioned.

3. 3.

   What is the main advantage of a Three Bus Architecture over a single bus?

   • Increased number of registers
   • Allows simultaneous data movement
   • Requires more temporary registers

   Hint

   Think about how bus systems interact.

4. 4.

   True or False: The ALU only takes inputs from bus C.

   • True
   • False

   Hint

   Review which buses the ALU interacts with.

5. 5.

   Using the Three Bus Architecture, describe how an instruction sequence would be executed more efficiently compared to the single bus architecture.

   Hint

   Focus on the number of action cycles for completion.

6. 6.

   Assuming a scenario where the ALU processes two operations simultaneously, outline how each bus would function during this process.

   Hint

   Think about input/output passages and timing.