Percent of households owning computers by selected demographic characteristics, 1990 and 1997 Wage range 1990.0 1997 TOTAL 15.2 34.6 High school graduate 8.6 22.5 College graduate 23.7 56.2 Graduate school 37.2 65.6 White 16.0 36.1 Black 6.7 17.9 Asian 25.0 49.1