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the telehraph revolutionized long distance communication -
before the telephone was invented it was impossible to communicate by voice across any kind of distance
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improvements to develop them into commercial system if wireless telegraphy -
the system was designed by philo taylor farnsworth a 21 year old inventor -
early computer were meant to be used only for calculations simple manual instruments like the abacus have aided people -
allow to share files and messages -
handheld cellular phone that allowed people to make longer distance calls than just a landline phone
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in 1987 nokia introduced its first mobile phone the mobira 900 for NMT 900 networks -
smartphone designed and marketed by apple inc -
the mobile operating system we all know as android was finally introduced -
the updates are small on the phone and incrremental
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nightography camera storage to hold all your night shots
