What is Cisco IOS?
Cisco IOS (Internetwork Operating System) is software from Cisco for use on various hardware devices such as network routers and switches. A command line interface controls a series of 'trains' defined as tools for deploying Cisco software for specific platforms.
Cisco defines Cisco IOS as 'the world's leading network infrastructure software' and claims that this operating system provides a seamless integration of platform support and business services and is a versatile resource for different types of networks. Cisco also calls IOS the most widely used software of its kind around the world.
In general, Cisco IOS is a modern operating system for handling network hardware for a household name in advanced network technology. Cisco IOS also offers simple syntax such as 'show, copy, config, and debug' commands and the use of a question mark ('?' ) To access help functions.