The Pandor Box

Computing, contraction of information and automatic, is the science of information processing. Appearing in the middle of the 20¿ century, it has undergone an extremely rapid evolution. To its initial motivation which was to facilitate and accelerate the calculation, numerous functionalities have been added, such as: automation, process control and command, communication or information sharing. This presentation of microprocessor system architecture exposes the basic principles of program information processing. The architecture of a microprocessor system represents the organization of its various units and their interconnections. The implementation of these systems relies on two distinct embodiments, hardware and software. The hardware corresponds to the concrete aspect of the system: central unit, memory, input-output devices, etc. the software (software) corresponds to a set of instructions, called program, which are contained in the various memories of the system and which define the actions carried out by the material.