Get step-by-step instructions for determining the operating system (OS) version on your devices and why it is so important to keep the OS updated.

Software is a set of instructions, written in computer code, that tells a computer how to behave or how to perform a specific task. Software usually comes in the form of commercial programs (like ...

A system software component that is external to the operating system kernel. If the phrase is used to refer to the operating system itself, it is redundant because an operating system "is" software.

The world of computing has long been governed by traditional operating systems like Windows, Linux and Unix. These platforms form the backbone of how we interact with computers, enabling software to ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Doretha Clemons, Ph.D., MBA, PMP, has been a ...

Your computer has an operating system, or OS. You may be using Microsoft Windows, Apple’s desktop Mac OS X, some variant distribution of Linux such as Ubuntu, Debian or OpenSUSE… or you may be mostly ...