Unlike Apple’s ________ iOS, which is available only on Apple devices, An-droid is available on devices from dozens of original equipment manufacturers (OEMs) and through numerous telecommunications carriers worldwide.
A) open source
B) proprietary
C) universal access
D) None of the above.

Question

Unlike Apple’s ________ iOS, which is available only on Apple devices, An-droid is available on devices from dozens of original equipment manufacturers (OEMs) and through numerous telecommunications carriers worldwide. 
A) open source
B) proprietary
C) universal access
D) None of the above.

Quizplus · Accepted Answer

Apple's iOS is proprietary, meaning it is owned and controlled by Apple, unlike Android, which is open source and can be used by various manufacturers.

Unlike Apple’s ________ IOS, Which Is Available Only on Apple