MERSI protocol was used by the computer that was a fourth generation of what type of processors?
PowerPC G4 PowerPC G4 is a designation used by Apple Computer and Eyetech to describe a "fourth generation" of 32-bit PowerPC microprocessors. Apple has applied this name to various (though closely related) processor models from Freescale, a former part of Motorola. Motorola and Freescale's proper name of this family of processors is PowerPC 74xx.
IBM System/3X IBM System/3X was a line of general business midrange computers that were developed and marketed by the IBM Company beginning in 1975. The AS/400, a successor system that was introduced in 1988, was based on a combination of the System/36 and System/38 computers.