Open Systems Interconnection (OSI)

The Open Systems Interconnection (OSI) model is a framework that standardizes how different computer systems communicate over a network. It divides this process into seven layers, each responsible for specific functions like physical connection, data transfer, and application services. This layered approach helps ensure that devices and software from different vendors can work together smoothly. Think of it like a relay race, where each runner (layer) has a specific role, passing the baton (data) efficiently from one to the next until it reaches its destination.