Changes

==The Bell System==

==The Bell System==

The '''Bell System''' was composed of the American Telephone & Telegraph company also known as (''Ma Bell''), 22 companies known as '''Baby Bells''', which provide telephone exchange services and equipment within the United States, the''' Bell Laboratories''', research and development subsidiary of AT&T and the '''Western Electric Company''', its manufacturing arm.<ref>[http://www.porticus.org/bell/bellsystem_history.html The Bell System]</ref>

The '''Bell System''' was composed of the American Telephone & Telegraph (AT&T) Long Lines also known as (''Ma Bell''), 22 regional operating companies known as '''Baby Bells''', which provide telephone exchange services and equipment within the United States, the''' Bell Laboratories''', research and development subsidiary of AT&T and the '''Western Electric Company''', its manufacturing arm.<ref>[http://www.porticus.org/bell/bellsystem_history.html The Bell System]</ref>

===Foundations of the Bell System===

===Foundations of the Bell System===