Credit CNN

It was a serious contribution to the electronic lexicon.

Carnegie Mellon professor Scott E. Fahlman was the first to use the :-) in a computer message.

:-)

Twenty-five years ago, Carnegie Mellon University professor Scott E. Fahlman says, he was the first to use three keystrokes -- a colon followed by a hyphen and a parenthesis -- as a horizontal "smiley face" in a computer message.

To mark the anniversary Wednesday, Fahlman and his colleagues are starting an annual student contest for innovation in technology-assisted, person-to-person communication. The Smiley Award, sponsored by Yahoo Inc., carries a $500 cash prize.

Language experts say the smiley face and other emotional icons, known as emoticons, have given people a concise way in e-mail and other electronic messages of expressing sentiments that otherwise would be difficult to detect.

Fahlman posted the emoticon in a message to an online electronic bulletin board at 11:44 a.m. on September 19, 1982, during a discussion about the limits of online humor and how to denote comments meant to be taken lightly.

"I propose the following character sequence for joke markers: :-)," wrote Fahlman. "Read it sideways."

The suggestion gave computer users a way to convey humor or positive feelings with a smile -- or the opposite sentiments by reversing the parenthesis to form a frown.

Carnegie Mellon said Fahlman's smileys spread from its campus to other universities, then businesses and eventually around the world as the Internet gained popularity.

"It has been fascinating to watch this phenomenon grow from a little message I tossed off in 10 minutes to something that has spread all around the world," Fahlman was quoted as saying in a university statement. "I sometimes wonder how many millions of people have typed these characters, and how many have turned their heads to one side to view a smiley, in the 25 years since this all started."

Happy Birthday smiley colon hyphen parenthesis face :-)

Happy Birthday :).....

Happy Birthday :-)...Happy birthday to you from your older brothers