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Papyrus is a material similar to thick paper used in ancient times as writing surface. It was made from pith of papyrus plant. it was used to designate documents written on its sheets, rolled up to scrolls.
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Typewriter is a mechanical or electromechanical machine for writing characters similar to those produced by printer's movable type. It is operates by keys that strike ribbon to transmit ink or carbon impressions onto paper. -
Television is machine with a screen. It receives broadcast signals and turn them into pictures and sound. It is a telecommunication medium used for transmitting moving images in monochrome, or in color, and in two or three dimension and sound. -
Smartphone is handheld personal computer with operating system for voice communication. It has features like telephone, digital camera and video camera.
