The population of this study included the 111 public school districts in Education Service Center Regions IV and VI, serving 22 counties of southeast Texas in the Houston area. Seventy-five questionnaires were returned from 111 school districts with a return rate of 68%. A total of 24,222 computers were reported in use by the 75 districts with a mean of 323 computers per district in 1991--up from 202 computers per district in 1989 and 86 computers per district in 1985. Of the 24,222 total computers, 13,379 (55%) were Apple IIe/IIgs; 2,802 (12%) were Macintosh; 720 (3%) were Commodore; 3,233 (13%) were IBM clones; 2,749 (11%) were IBM; 720 (3%) were TRS 80; and 715 (3%) were other brands. The estimated mean computer literacy rate for teachers in the districts was 54% with the range from 10% to 100%. The mean number of computer labs in a school district was 10 labs with the range from 1 to 85. Fifty-three of the 75 school districts (70%) indicated that they had networked computers. (Contains 9 references.) (Author)