iOS
/ʌɪəʊˈɛs
/noun [mass noun] trademark in the UK
An operating system used for mobile devices manufactured by Apple Inc. [as modifier]: both the iPod touch and the iPad are iOS devices...
- They are intended to be read only from the iBooks app on an iOS device.
- For my part, I like Apple's approach to the iOS platform.
- Certain software elements, like iOS, were not availabe.
Origin
Early 21st century: from i-as in iPod and other products manufactured by Apple Inc. and an abbreviation of operating system.