Applications "talk to" the operating system for all user interface and file management operations. Also called an "executive" or "supervisor," an operating system performs the following functions.

When it comes to modern operating systems for PowerPC-based systems like ... did not try too much beyond an initial impression of the GUI and preinstalled applications. There is also a 30-minute ...

It’s now 25 years ago that Windows 95 was launched, the operating system that gave the majority of 1990s PC users their first taste of a desktop-based GUI and a 32-bit operating system.