Should a president -- of the United States, or even of a company, for that matter -- use a computer? Or, are there jobs that are too important for the office holder to be spending the day deleting spam or closing pop-up windows in a browser?

The two presidential candidates this year, in addition to all their other, more-significant differences, also present two contrasting perspectives about the extent to which personal-computer technology can be integrated into someone's everyday life.

Sen....