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Naissance des ordinateurs : ENIAC & EDVAC

Rappel 

En quelle année a été créé le calculateur binaire ?

Par qui et en quelle année a été inventé  le Mark I et II ?

Motivation

Quelle est la machine qui a été inventée en 1945 par John Von Neumann ?

Annonce du sujet

Qu'allons nous étudier aujourd'hui?

Analyse

Que signifie ENIAC ?

Que pouvait faire l’ENIAC ?

En quelle année et par qui fut construit l'EDVAC?

synthèse

Qu’est-ce que nous venons d’étudier ?

 

Le calculateur binaire a été crée en 1941.

Par Haiken et C, Lake entre 1939 et 1944.

L'EDVAC

Aujourd'hui nous allons étudier L’ENIAC & l’EDVAC

- Eniac 

L’ENIAC signifie électronic Numérical integrator and computer inventé par John Maumuly et Proster Ecker en 1945.

Eniac fut une machine électronique universelle programmable numérique basée sur le système décimal.

L’ENIAC pouvait multiplier deux nombres de  chiffres en 3 mille seconde, malheureusement, il présente l’inconvénient dans la modification de ses programmes, sa mémoire interne était petite et les fiches interchangeables. 

Edvac (Electronic Discret variable Computer)

Avant  la fin de l’année 145 John va Neumann, un mathématicien d’origine Hongroise associé comme consultant au projet Eniac franchit le dernier obstacle et proposa la construction de l’ADVAC, machine modèle de l’ordinateur tel qu’on le conçoit à présent, car il accomplète une abstraction générale du système de commande en proposant d’enregistrer les programmes en mémoire.

L’ordinateur est né, c’est la  machine de Von Neumann. Cette machine était inspirée par le fonctionnement du cerveau humain, qui a deux fonctions essentielles ‘’mémoriser les informations et les traiter’’.

L’Edvac est le premier calculateur électronique à programme enregistré.

Nous d’étudier l’Eniac & Edvac qui sont des machines programmables.

Nous venons d’étudier l’Eniac & Edvac  qui sont des machines programmables.

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