29.2.5. Instruction Decoder

Try these first

1. 1.

   What is the role of the ALU in a CPU?

   Hint

   Think about the major functions within a CPU.

2. 2.

   How many buses are in a three-bus architecture?

   Hint

   Remember the letters associated with the buses.

3. 3.

   What is the primary function of the ALU?

   • Memory Management
   • Data Input
   • Arithmetic and Logic Operations

   Hint

   Consider what computations the CPU must perform.

4. 4.

   True or False: A three-bus architecture uses temporary registers to hold data during operations.

   • True
   • False

   Hint

   Think about how data moves in this type of architecture.

5. 5.

   Describe a scenario in which a single bus architecture might lead to processing delays. How does a three-bus architecture alleviate these delays?

   Hint

   Think about the limitations of a single pathway for data.

6. 6.

   Critically assess the trade-offs involved in using a three-bus architecture compared to single or dual bus systems in CPU design.

   Hint

   Consider both technical and economic perspectives.