U.S. Bureau of the Census - 1940
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Internet was first used for military purpose which used the concept of packet networking. ARPANET was the first internet protocol to be used for communication.
The first microwave oven was built in 1945, as a proof of concept, by Percy Spencer.
Probably in Arabia in ancient times. The Arabs were the first to introduce the concept of 'zero'.
prototype
Prudence concept
1971 two MIT students send the first email across campus. Thus, began the Internet.
The concept of the number zero first appeared in India around 458 A.D.
Concept used with an object. For exampel: We will concept the car at the next meeting.
"avatar" is a word first used in 1784. it is an incarnation in human form or an embodiment as of a concept or philosophy often in a person.
Concept art is an illustration that is to be used in comic books, films, video games, or animation before it is placed in the final product. Basically a development or concept design.
Sublime,the term was first used by Longinus in his book 'On the sublime'.He said," Sublimity is the echo of great soul".