Cisco IOS is a special kind of computer program that makes Cisco devices work. These devices are usually things like routers and switches, which are really important parts of computer networks.
Cisco IOS is like the boss or manager of the device. It tells the device what to do and how to do it. It also has a lot of different settings that can be changed to make the device work better. Like if you’ve ever played with settings on your tablet or phone, or asked your parents to turn off the Wi-Fi, IOS is kinda like that.
But the thing is, Cisco IOS is what makes these big devices work smoothly. Without this program, our internet and computer networks wouldn’t work as well, and we wouldn’t be able to connect our devices to them. So it’s really important!