Question: What exactly is in the second cell of the array in the above picture?
Answer: The cell contains the address of the 'i' from the second group of characters on the command line.
The OS creates the data structure from what you type on the command line. It is up to your program to deal with the structure correctly (or to ignore it.) OS puts the tokens (groups of characters) from the command line are put into null-terminated strings but does not process them.