On-line

On-line

En ligne et hors-ligne

En général, un système (ordinateur, réseau), et par extension son utilisation ou ce qu'il contient, est dit en ligne (en anglais online) s'il est connecté à un autre réseau ou système (au moyen d'une « ligne » (en anglais line) de communication, bien que ce ne soit pas toujours le moyen; c'est comme "être au téléphone"). Diverses significations plus spécifiques existent :

  • En langage courant, le réseau est en général Internet, si bien que 'en ligne' ou online décrit un service, une information accessible par Internet ou l'état d'un ordinateur et de son utilisateur d'y être connecté, etc.
  • L'utilisation de services Internet (telle que la lecture et rédaction de courriels) est dite 'en ligne' si elle nécessite une connexion (cas du Webmail) ou, par opposition, 'hors ligne' si, entre d'éventuels brefs échanges de données (courriel) en ligne, un programme (client de messagerie) est capable de réaliser ce service de manière locale et autonome, sans être connecté.


Références

  • Federal Standard 1037C
  • MIL-STD-188

Lien externe

Ce document provient de « En ligne et hors-ligne ».

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Contenu soumis à la licence CC-BY-SA. Source : Article On-line de Wikipédia en français (auteurs)

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