1/ Mobile devices such as cellphones and tablets can accommodate most common user tasks that traditionally done on a computer a) What are the similarities between the user interaction styles on these two computing models? b) What are the differences between the user interaction styles on these two computing model? Why there are such a difference? Can one computing model accommodate other model effectively (why/how or why not - give examples) 2/ What the new user interaction style(s) in computing world would be? Explain/justify