Connected technology is revolutionizing hospitality by shifting to a "high-tech", personalized, and contactless model. Key innovations include mobile check-in/digital keys (preferred by 71% of guests), IoT-enabled smart room controls (lighting, temperature), and AI-powered, 24/7 chatbots for instant service. This "phygital" (physical + digital) approach enhances convenience, safety, and operational efficiency.

Telecommunications involve transmitting information (voice, data, video) over distances using electrical signals, fiber optics, or radio waves. A basic system consists of a transmitter (encoder), a transmission medium (cable/wireless channel), and a receiver (decoder). Key technologies include cellular, internet, satellite, and telephone networks.