[ GLOSSARY DEFINITION ]
Software
Operating System
The system software that runs the device (iOS, Android, Windows, iPadOS); defines updates and features.
Also known as:
OS
Firmware
Full Definition & Technical Explanation
Operating system (OS) is the software layer on hardware. Phones show Operating system: iOS 26 (Can be upgraded...), iPadOS, or Android with a vendor skin.
It determines app store, features, and update longevity. See Operating system and OS size in specs.
Related Technical Terms
Android
Google's operating system used by most phones/tablets; heavily customized by vendors.
Software
OS Updates
How many years a device gets major OS and security updates; longer is better for longevity.
Software
iOS
Apple's operating system for iPhone; known for long, consistent software support.
Software