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 ...

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

According to a Goldman Sachs' private report , Microsoft's share of the computing device operating system market has declined to a mere 29%. Above it? Apple's iOS and Google's Android. Windows ...