~ Stored Program Concept


Stored program concept

stored program concept - a program must be in main memory in order for it to be executed. The instructions are fetched, decoded and executed one at a time


Building on the Von Neumann architecture we get the idea of how the stored program concept works. If you have ever loaded a game on a console you might notice that:

  1. you need to insert a disc
  2. the disc spins
  3. the game says loading
  4. the game plays

This is the stored program concept in motion! Let's take apart what is happening:

  1. You insert an optical disk (secondary storage) with the code on
  2. The code is loaded into main memory
  3. The processor fetches, decodes and executes instructions from main memory to play game
CPT-System-Architecture-Stored-Program.svg


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