1. I'm curious what you thought of the video.

2. Let's work through these answers:

   1. Outline why can’t we use only registers or cache for all memory.

   2. Outline how do cache hits/misses affect performance.

   3. Describe what happens when the CPU runs out of cache space.

   4. Explain how RAM and ROM differ in usage and design.

We will cover: 

A1.1.5 Describe the fetch, decode and execute cycle. 
• The basic operations a CPU performs to execute a single instruction in machine language 
• The interaction between memory and registers via the three buses: address, data, control