If in a single Windows directory, you were to save four files using these filenames: Skiing-WP.doc, SKIing-wp.doc, Skiing-wp.docx, and Skiing-wp.doc. How many new files would be displayed: one, two,...

If in a single Windows directory, you were to save four files using these filenames: Skiing-WP.doc, SKIing-wp.doc, Skiing-wp.docx, and Skiing-wp.doc.

How many new files would be displayed: one, two, three, or four? Explain

why you believe this is so. Is the answer the same for all operating systems?