12.5 Design of a simple microcomputer
In this section, we will look at how two of the higher-level components of a simple microcomputer, the ALU and main memory, can be constructed from the low-level circuits presented in sections 12.3 and 12.4. In order to have a context in which to frame this discussion, we will briefly look back at the Watson Virtual Machine of Chapter 11 – filling in some additional details concerning its construction.