NEW YORK -- For most of its 95 years, the Dow Jones News Service machine -- best known as "the ticker" -- was a key part of newsrooms and trading floors, delivering its daily stream of financial information with a loud, rhythmic clack-clack-clack of keys striking paper.
The sound of the ticker has long since evolved into the blurred clatter of the high-speed printer, but even that soft drone will be silenced after Jan. 1 when Dow Jones replaces the few remaining ticker machines and completes the conversion to all-electronic delivery of the news service.
Roger B. May, a Dow Jones spokesman, said only a few hundred of the printer machines are still in service. All the rest of the approximately 131,000 clients of the news service receive data electronically.