Hi Bert,
It sounds like you want to receive data and display it line over line in a "console" or dos type environment so it displays as :
DATA WORD 1
DATA WORD 2
DATA WORD 3
DATA WORD 4

. . . is this correct ? Assuming it is then given a typical DOS " MODE" you could see
80 x 40 characters.On screen.
You would likely have to write this program for the PC probably in " C ". Or using VB in a GUI environment. Another option is to write your USART to output HTML and view in a browser . . . HTML could format text to display that way, I THINK.