Crossbar Switch

A crossbar switch is a device that connects multiple input lines to multiple output lines in a grid-like arrangement, allowing for efficient, direct communication between any input and output. Think of it as a busy intersection where each input (like a road) can connect to any output (another road) through a series of crossing points. It uses a matrix of switches to create dedicated paths, enabling multiple data transmissions simultaneously without interference. This design is essential in telecommunications and computer networks to ensure fast, flexible, and reliable data transfer between many sources and destinations.