A casualty of the rise of the IBM PC  was DEC . As IBM had done with the System/ 360 range, DEC invested billions of dollars in their VAX range, which became an unbelievable success. As Compaq Computers would do in the 1980s, DEC achieved unbelievable growth, going from its foundation in 1957 to a sales turnover of $8 billion in 1986 (the peak year for DEC, before the PC  destroyed the market for minicomputers)