The technology that enables simultaneous access to multiple devices over a network is multiplexing. Multiplexing techniques allow multiple signals or data streams to be combined into one over a shared medium, optimizing resource use and enhancing communication efficiency. This technology is crucial in telecommunications and data networks, where it facilitates the exchange of information between multiple devices without significant interference. By employing multiplexing, organizations can improve bandwidth utilization, reduce costs, and ensure effective communication between various networks and devices.