BUSINESS
March 13, 1990 | KIM KOWSKY, TIMES STAFF WRITER
When comic strip hero Dick Tracy needed to call the police chief, he never bothered rifling through his pockets for loose change. The famous detective simply pushed a few buttons on his two-way wrist radio and, voila , he had headquarters on the line. The comic strip's creators could not have known just how sophisticated telephone communications would become in the 1990s.