How does the logical topology differ from the physical topology? why can a single physical topology support multiple logical topologies?

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.

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.

How is the brightness of oled of the diaplay is controled