communication terms

communication in the form of spoken or written words

communication in the form of gestures, eye contact , or tone of voice

speech is the expression of , or the ability to express thoughts and feelings by actual sounds

something that represents or stands for something else

around 30,000 BC murals were painted on cave walls that told stories of battles , hunts , and culture

around 10,000 BC images were created by removing part of a rock surface by incising , pecking ,carving , and abrading

9,000 BC saw the development of pictures that represent an object or an idea

a written character that symbolizes the idea of a thing without indicating the sounds used to say it, e.g., numerals and chinese characters

a sequence of letters, words, or symbols marked on paper or other surface ( 2700 BC )

a set of letters or symbols in a fixed order ( 1700 )

gutenburg was the first to use a press to print the bible, the oldest full length volume printed. ( 1450 )

in ( 1714 ) an englishman, henry mill, received the first patent for a typewriter

( 1831 ) joseph henry invents the first electric telegraph.

alexander graham bell invented the telephone in boston in ( 1876 )

( 1951 ) first commercially available, “mass produced” electronic computer entered the market

in ( 1973 ) a global computer network emerged, providing a variety of information