Difference between MOVE and WRITE TO

What is the difference between MOVE and WRITE TO ?

I have gone thr std help but unable to get it exactly. What is peculiarity about type c ?

The documentation says " In contrast to MOVE, the format of the target field g is the same as when outputting to a list with WRITE. The field type C is always used, regardless of the actual data type. "

Regards,

Nitin