3.1.1.3 CPU Architectures

Question 1

stored program concept

Answer 1

The data that a CPU processes is stored in memory.
The instructions that a CPU executes are also stored in memory.
The CPU fetches instructions from RAM, decodes them, and then executes them.

Question 2

harvard architecture

Answer 2

Harvard architecture (an alternative architecture) has separate memories for storing program instructions and data.

Question 3

von neumann architecture

Answer 3

The ‘Memory Unit’ contains both data and program instructions.
A computer with a von Neumann architecture stores program data and instructions in the same memory space