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The printing press makes copies of text on paper. Johannes Gutenberg was the inventor of the printing press. By 1500, millions of books had been printed.
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Ben Fraclen invented it to write with.
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Samuel B. Morse invented the telegraph. It is important so people could send messages to different places.
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Invented by an American inventor named Christopher Latham Sholes. Typewriters allow us to write more quickly than using paper and ink.
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Alexander Graham Bell invented the telephone because if we didn't have phones then we wouldn't be able to call somebody. Everybody needs phones to text and tell someone something because you might not see them.
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Thomas Edison invented the phonograph. It is important because it is used to record and play back sounds.
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Gugliemo Marconi invented the radio and allowed us to hear sounds from great distances.
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A camera is an instrument used to take or record pictures of people and objects. Some cameras record single still pictures called photographs. Movie cameras and video cameras record moving pictures. These are called movies, films, or videos.
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Television helps people share ideas with each other,
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The mimeograph or stelic duplicator uses a stelic consisting of a coated fiber sheet through which ink is pressed.
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A computer is a device for working with informatoin. The first electronic computers were invented in the 1940s.
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Engelbart invented the mouse. He built the mouse a palm sized box with one or more control buttons on top. Moving the mouse across a table top moves a pointer on the computer screen.
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H. Edward Roberts introduced the first mass-produced personal computer. We use them to learn at home.
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The internet is a network or system that connects millions of computers world wide. It began as ARPANET.
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The WWW allows people to communicate, work, learn, and have fun.
