The threat posed to IBM by Unix continues to grow: according to Dataquest, San Jose, California, the Unix market is expanding at an annual rate of 48% and will clock up $7,200m of business in 1990, against $1,700m in 1986; Dataquest also predicts that by 1990, education will account for 11% of the Unix market compared to a current 9%, industry will drop 2% to 55%, and that the public and military sectors will remain a constant 34%.