Virtual Circuit

A virtual circuit is a communication method used in computer networks where a dedicated, logical connection is established between two devices before data transfer begins. Think of it like a phone call: once connected, all data follows the same path, ensuring reliable and orderly delivery. Unlike sending data randomly, virtual circuits maintain a consistent route, which helps manage traffic efficiently and guarantees that data arrives correctly. This approach is common in technologies like Frame Relay and ATM, providing a reliable, connection-oriented way to transmit information over complex networks.