Time Needed for Technology to Reach 50% of American Homes

[W. Gray]

From Rush Limbaugh radio program, April 7, 2008,

The time needed for a major technology to reach fifty percent of American homes:

Telephone      71 years
Electricity          52 years
Radio             28 years
Personal Computer    19 years 
Color TV        18
Cable            15
Cell Phone        14
VCRs                12
CD            11
Internet        10
DVD            5
IPod            4