This summary of the use of microcomputers in Florida public schools during the 1990-91 school year indicates that the schools have reported a total of 131,367 microcomputers being used for student instruction, and 21,806 being used for administrative purposes. Four tables present data on the number of microcomputers in individual school districts for the years 1986-87 through 1990-91 together with the change since the previous year; the number of instructional computers by type for each school district over the 5 year period; the number of administrative microcomputers in each school district over the same period and the net change since the previous year; and the number of administrative microcomputers in school district by type for the same period. Types of computers used include Atari, Apple, IBM, Commodore, Tandy, and other. Six figures and a map showing the Florida reporting regions are also included. (DB)