Which operating system is proprietary and runs on Apple and Macintosh computers?

Which operating system is proprietary and runs on Apple and Macintosh computers?

• A. Windows
• B. Linux
• C. Apple macOS
• D. Android

Answer: (C)

The main idea here is identifying an operating system that is both owned by a company and meant to run on Apple hardware. macOS fits this exactly: it’s developed by Apple and is designed to run exclusively on Apple/Mac computers, and it’s proprietary software with source code not publicly available. The other options don’t match both parts. Windows is also proprietary but is intended for PCs and isn’t the default OS on Macs (even though it can be run there in some cases). Linux is open-source, so it isn’t proprietary. Android is a mobile OS developed by Google and isn’t used on Apple/Mac desktops. So macOS is the correct choice.

The main idea here is identifying an operating system that is both owned by a company and meant to run on Apple hardware. macOS fits this exactly: it’s developed by Apple and is designed to run exclusively on Apple/Mac computers, and it’s proprietary software with source code not publicly available. The other options don’t match both parts. Windows is also proprietary but is intended for PCs and isn’t the default OS on Macs (even though it can be run there in some cases). Linux is open-source, so it isn’t proprietary. Android is a mobile OS developed by Google and isn’t used on Apple/Mac desktops. So macOS is the correct choice.