Input/Output Supervisor, a part of the control program in the IBM mainframe OS/360 operating system and its successors
IOS (Wii firmware), firmware that runs on the Nintendo Wii used with Wii homebrew
Internet operating system, any operating system designed to run all of its applications and services through an Internet client, generally a web browser
This disambiguation page lists articles associated with the title IOS. If an internal link led you here, you may wish to change the link to point directly to the intended article.