What does operating system actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

Apple is completely revamping its software with iOS 26, iPadOS 26, and macOS Tahoe 26, its upcoming operating system updates. With a similar design language, … The post Apple explains how iPadOS 26 ...

The new operating system for Apple's iPhone will allow multi-tasking, letting users run more than one program at a time, Apple chief executive Steve Jobs says.

hello, i'm searching for a good os for older x86 machines that run between 16-100mhz (386 to p100) with very small ammounts of memory (2-4MB), and small hard drives (system must be ~5-10MB full ...

OS/2 was properly designed operating system, bringing multitasking, layered architecture and GUI to the DOS world. It even allowed easy porting of DOS apps to the new architecture.

New Liquid Glass design. After many rumors, Apple has unveiled its new “Liquid Glass” interface, which is available not only on iPadOS 26, but also across all its operating systems.