Write a program that computes and display the n! for any n in the range1...100

2.)how does a graphical user interface (gui) on a touchscreen interface differ from a gui on a desktop or laptop? a.)a finger or stylus is used instead of a pointer. b.) a magic wand is used instead of a pointer. c.)users speak commands instead of using a pointer. d.)users visualize commands instead of using a pointer.

Which operating system is a version of linux?

How would you categorize the software that runs on mobile devices? break down these apps into at least three basic categories and give an example of each.