Saving and printing documents from an Acer Aspire 6920

Hi,

My name is glen.  I have a question.  I own an Acer Aspire 6920.  I have only used my Acer computer for Ebay and emails.  Now I would like to write a 10 page document, then save it, then print it at a later date.  Can anyone tell me EXACTLY how to accomplish this task.  I am older and not very computer literate.  I would GREATLY appreciate anyones help.  Hope to hear from someone who knows the exact steps.   Thanks.   Glen       Rockford, IL   12/15/2014