Full Duplex vs Half Duplex: Simultaneous vs Alternating Communication

Sat, 01 Aug 2026 20:12:00 +0900

Overview

Full duplex and half duplex describe how a communication link handles data flowing in both directions. A full duplex link sends and receives at the same time over independent paths, while a half duplex link shares a single channel and must alternate between sending and receiving. The distinction determines whether devices collide, how much of the link’s bandwidth is usable, and how much delay is added when a device switches from listening to talking.

Data-Transmission on IT Comparison

Full Duplex vs Half Duplex: Simultaneous vs Alternating Communication

Overview