Network Operating System (IOS)

A Network Operating System (NOS), like Cisco's IOS, is specialized software that runs on network devices such as routers and switches. It manages and controls how these devices connect, communicate, and route data within a network. The IOS provides the tools and protocols needed for configuring, monitoring, and troubleshooting the network, ensuring reliable data transfer and security. Think of it as the brain behind network hardware, enabling efficient and secure communication across different devices and locations.