The General Computer Model

The Little Man Computer is intended to provide a basis for understanding "real" computer systems (which are much more complex). One major difficulty in learning about "real" systems (in addition to their complexity) is that they are all different. However, it is possible to imagine a system which exhibits characteristics found in most computer systems. Such a system can be referred to as "The General Computer Model". Although the terminology may vary between computer systems, the components and instruction cycle of the "general computer system" are those you could expect to find on most common general purpose computers.

Components of the General Computer Model

Components of the Processor

Memory and the External Bus

The Processor and Memory are connected by a collection of "wires" called the "external bus"

Instruction Processing in the General Computer Model