IBM said it will raise monthly rental...

IBM said it will raise monthly rental and lease charges on all its computers and the maintenance fees on some of its mainframe computers by 7%, effective June 1. International Business Machines also said it has raised the hourly service rates charged by its national service division by 15%, effective Friday. Equipment rentals and other services account for a small portion of IBM’s sales, about $3.3 billion out of a total of more than $54 billion in 1987. Its maintenence revenues totaled $7.7 billion last year.