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

Windows 7 is the latest operating system to reach “end-of-life,” or EOL, and become officially obsolete. This means no more updates, no more features, and no more security patches. Nothing.

The complete computer made up of the CPU, memory and related electronics (main cabinet), all the peripheral devices connected to it and its operating system. Computer systems fall into two ...

Software is computer code that tells a computer how to perform a specific task. Software can include operating systems, applications, and malware.

ChromeOS is a light-weight and cloud-first operating system. It offers many of the same features you'll find on Windows and MacOS devices.

Parental controls are outdated. Make your PC fun for all ages using operating systems designed specifically for tech-savvy tykes.

Why is my computer not detecting the operating system? Your Windows device may not detect the operating system if there’s a misconfiguration in the system’s BIOS or a defective hard drive.