Describe Computing Device in your own words.

a computing device is a functional unit that can perform numerous arithmetic operations and logic operations without human intervention

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credit to ace:  

batradivjyot25.  

answer is:

a). backstage view

explanation:

backstage view is the area where files and data about them is managed— creating, saving, printing, sending to others, inspecting for hidden metadata or personal information, and setting options. so in this way we can add many things to our document swiftly.

i hope you get the idea.