I believe its copying, pasting, moving and deleting text within a document. Formatting text such as font type, bolding, underlining or italicizing.
Answer:
Sir William Crookes invented the cathode ray tube in 1878, but these discoveries took many years to merge into the common ground of television. His mechanical system used a scanning disk with small holes to pick up image fragments and imprint them on a light-sensitive selenium tube. A receiver reassembled the picture.
Answer:
Mouse
Explanation:
A mouse is used by a user for navigating across a computer screen and making selections on the computer screen.
On a laptop, the user may use a trackpad for the same purpose.
Answer:
একটি ছবির মূল্য 84.1 শব্দের
Explanation:
It will delete one character,or if you have something selected it will delete it