communication terms

Communication in the form of spoken or written words

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

is the expression of or the ability to express thoughts and feelings by articulate 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 image 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 and 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

is sequence of letters ,words ,or symbols marked on paper or other surface

a set of letters or symbols in fixed order

johann guteburg invented an actual printing press in 1450

in 1714 an Englishman ,Henry Mill,received the first for a typewriter

1831 Joseph Henry invents the first electronic telegraph

Alexander Graham Bell invented the in boston in 1876

1951 the first commercially available mass produced electronic computer entered the market

in 1973 a global computer network emerged providing a variety of information and communication facilities