Open System Interconnection (OSI)

The Open Systems Interconnection (OSI) model is a framework that standardizes how different computer systems communicate over a network. It divides the communication process into seven layers—from physical connections like cables, to data formatting, routing, and application services—each with specific functions. This layered approach helps different devices and protocols work together smoothly, ensuring data is transferred accurately and efficiently across diverse systems. Essentially, OSI acts as a common language and structure, promoting interoperability and clear communication in networking.