Posted by: Pdfprep
Post Date: November 23, 2020
A mobile operating system is the operating system that operates a mobile device like a mobile phone, smartphone, PDA, etc. It determines the functions and features available on mobile devices such as keyboards, applications, email, text messaging, etc.
Which of the following mobile operating systems is free and open source?
A . Web OS
B . Android
C . Apple IOS
D . Symbian OS
Answer: B
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