Which component of a computer is its input device and what role does it play in a document?

the (speakers), (keyboard), (documents), is an input device of a computer that in (entering data), (reviewing data), (publishing data), in a document.

Input device is a term used to explain computer hardware that a user can utilize to provide the data that she or he wishes to put into the computers.

From all the available options, the best answer to the first blank space would be keyboard, because keyboard is an input device you use to insert alphanumerical data into your computer. Based on this, the answer to the second blank space would be entering data.

leaning back,   no eye contact,   fidgeting in the seat

you, i'm trying to get a higher rank, this really ! : )