"Twitter is this operating system of news," she says.
It became the operating system of the web, then of our mobile devices; now it would like to be the operating system of your eyeglasses and your automobile.
A slide show function is built into the operating system of iPads and iPhones.
But Microsoft fears that Google could become a kind of operating system of the Internet in the same way that Windows is the dominant operating system of personal computing.
If you couldn't upgrade the operating system of a two-year-old PC, there would be uproar.
Apple has updated the operating system of its first smartwatch with native apps, added complications and a few interface tweaks.
In short order, the Berkeley Systems Distribution (BSD) of Unix became the most widely used operating system of its day.
And Mr. Gates's software, in particular -- the operating system of I.B.M.'s machine -- secured a controlling position that it still has not relinquished.
Much has already been written about the Nokia N8 and what a mess the phonemaker has made with the operating system of a truly lovely handset.
A1 Macs Set to Run Windows Apple introduced a program that will give its Mac computers the ability to run Windows, the operating system of its rival, Microsoft.
His venture capital firm, the OS Fund, backs entrepreneurs who are working towards "quantum-leap discoveries" that promise to rewrite "the operating system of life".
