There has been perhaps no single technological tool during the last half of this century that has touched so many lives and their social organization so quickly than that of the personal computer. The transition of computing from an organizational to a personal level is in large part a technological triumph. But its acceptance and integration into daily life is a social phenomenon, one which is still not well-understood. This paper uses national survey data, collected over a 14-year period, to examine the pace at which personal computing has spread across the population and identify those segments which are differentially affected and involved. Trends for adults and children are examined separately. The growing use of the Internet is also explored.