PLATO, cradle of so many firsts, was born 50 years ago. Next week the Computer History Museum is hosting a two-day conference to celebrate the anniversary
. Microsoft's Ray Ozzie, who worked on PLATO as an undergraduate, will be one of the keynote speakers. Co-producer Brian Dear has put together a list of today's technology notables and what they were doing in 1973
, the year that social computing suddenly blossomed on PLATO.