The data, based on visits to U.S. government websites, also shows that despite being the most popular operating system, Windows is losing its grip on the market.

ZDNet's global readers favorite operating systems largely track those of American government visitors, but with some interesting differences.

Conventional wisdom in years past was that hackers didn’t bother to exploit Apple’s OS X operating system because its relatively insignificant market share didn’t warrant wasting resources ...

The government's data, derived from 1.39 billion web visits to more than 37 government agencies over the last 90 days, reveals that the second place operating system is Apple iOS with 16.4 percent ...

iOS is the operating system used on mobile Apple devices. Windows is the operating system that runs on Windows-based PCs and laptops.

The operating system is based on the Mac OS software, which has been used to run Macintosh computers. iOS is also the template for other Apple product systems, including watchOS, tvOS, and iPadOS ...