Digital & Data

Bande passante

Définition

La bande passante est la capacité maximale de transfert de données d'un canal de communication, généralement mesurée en bits par seconde (bps, Mbps, Gbps).

Explication

Bandwidth represents the theoretical ceiling, not the actual speed achieved in practice. A fiber link may have 1 Gbps bandwidth but deliver less throughput due to protocol overhead and network congestion. The term originates from radio engineering, where it described the range of frequencies a channel could carry. Consumer broadband plans typically offer 100 Mbps to 1 Gbps downstream bandwidth.

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