Final answer:
To get a hard copy of a computer file, the correct action is to Print the document. This process transfers the digital document onto paper through the connected printer.
Step-by-step explanation:
When a hard copy of a computer file is needed, you must perform the action to Print the document. This converts the digital file into a physical form on paper. To do this, you typically go to the file menu in the application where the document is open, choose the print option, configure any necessary settings such as the number of copies or specific pages, and then send it to the printer connected to the computer or available on the network.