1. : Which operating system is developed by Microsoft?
(A) Linux
(B) macOS
(C) Windows
(D) Android
2. : Which operating system is open-source and based on Unix?
(A) iOS
(B) Linux
(C) Windows
(D) macOS
3. : Which operating system is specifically designed for Apple’s desktop and laptop computers?
(A) macOS
(B) Windows
(C) Android
(D) Linux
4. : Which operating system is most commonly used in smartphones and is developed by Google?
(A) Windows
(B) iOS
(C) Android
(D) Linux
5. : Which operating system runs exclusively on Apple’s iPhones and iPads?
(A) Android
(B) iOS
(C) Windows
(D) Linux