There are now 46 companies around the world building microcomputers around the 16-bit bus 80386SX microprocessor according to Intel Corp, which adds that the chip has had the fastest production ramp of any of its microprocessors and is expected to be the fastest growing chip on the market this year: users include Apricot Computers, AST Research, Canon, Club America, Compaq Computer, Everex, Mitsubishi Electric, NCR, NEC, Ogivar, Sony, Tatung, and even Unitron of Brazil.