Question

Which of the following is not a Mobile operating Systems? 
a. Android
b. Symbian
c. DOS
d. iOS​

Answer 1

c). DOS

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Answer 2

Answer:

DOS is not a mobile operating system.

Explanation:

Among android, Symbian, DOS, and iOS, DOS is not an operating system.

• Android: Android is an operating system that was designed keeping in mind the mobile. So that all the functions and applications of the phone can be run easily in it. Whatever you see on the display of the phone, they are all part of the operating system. Whenever you receive a call, text message, or email, your OS processes it and presents it to you in a readable format.

• DOS:  DISK OPERATING SYSTEM is a character user interface operating system that was first introduced as CUI OS. This is still popular today and it is used to take commands rather than graphical inputs.

• Symbian and iOS are also popular operating systems for Mobile devices.

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