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Chalkboard
Although chalkboards are still common in schools, especially in older schools, newer schools today tend to use the dry-erase board for its ease of use and because it eliminates chalk dust contamination in the classroom and avoids the need to have students clean erasers, a common chore in earlier days. -
Telephone
Antonio Meucci, an Italian immigrant, began developing the design of a talking telegraph or telephone in 1849. -
Typewriter
The first typewriter to be commercially successful was invented in 1868 by Americans Christopher Latham Sholes, Carlos Glidden and Samuel W. Soule -
Remote controls
The first remote intended to control a television was developed by Zenith Radio Corporation in 1950 -
Ipad
The iPad was announced on January 27, 2010, by Steve Jobs at an Apple press conference at the Yerba Buena Center for the Arts in San Francisco.
