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Cisco Internetwork Operating System (IOS) is a family of network operating systems used on many Cisco Systems routers and current Cisco network switches. Earlier, Cisco switches ran CatOS. IOS is a package of routing, switching, internetworking and telecommunications functions integrated into a multitasking operating system. Although the IOS code base includes a cooperative multitasking kernel, most IOS features have been ported to other kernels such as QNX and Linux for use in Cisco products.

'''IOS''' (internally known as '''IOP-OS''' and '''boot3''') is the Wii's operating system running on the [[IOP]] (Starlet) ARM9 core inside the [[Hollywood]]/[[Bollywood]] package, developed by [[BroadOn]]. It handles I/O and security tasks, providing hardware access to the [[Broadway]] as well as serving as a barebones 'hypervisor' for the system upholding content licensing restrictions. This article lists all of the known IOS versions, and their details/differences.

==General Notes==

==General Notes==