 Free from the antitrust case, IBM was present in every computer market other than supercomputers, and entered communications by purchasing Rolm—the first acquisition in 18 years—and 18% of MCI.The company was so important to component suppliers that it urged them to diversify.When IBM (61% of revenue) abruptly reduced orders from Miniscribe shares of not only Miniscribe but that of uninvolved companies that sold to IBM fell, as investors feared their vulnerability.