Windows: Microsoft Incorporation offers a number of proprietary graphical operating systems under the Windows brand. Microsoft Windows is another name for it. Windows NT and Windows IoT are presently part of its family. Windows 9x, Windows Mobile, and Windows Phone, which are no longer in use, were formerly listed. It is the most widely used computer operating system. Microsoft released the initial version of Windows in 1985. Windows 10 is the most recent version of Windows for personal computers.

macOS: Apple Incorporation provides a series of proprietary graphical operating systems known as macOS. Previously, it was known as Mac OS X and then OS X. It's intended exclusively for Apple Mac computers. The operating system is based on Unix. C, C++, Objective-C, assembly code and Swift were used to create it. After Windows, it is the second most popular operating system for personal computers. Apple released the initial version of macOS in 2001. 10.15.1, often known as Catalina, is the most recent stable version of macOS.