A) Laptops
B) PDAs
C) Smartphones
D) Both 2 and 3
E) All of the above
Correct Answer: D
Solution :
[d] Palm OS is a mobile operating system initially developed by Palm. Inc., for personal digital assistants (PDAs) in 1996. Palm OS is designed for ease of use with a touch screen-based graphical user interface. Later versions of the OS have been extended to support smartphones.
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