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.
XAP processor The XAP processor is a RISC processor architecture developed by Cambridge Consultants since 1994. XAP processors are a family of 16-bit and 32-bit cores, all of which are intended for use in an application-specific integrated circuit or ASIC chip design. XAP processors were designed for use in mixed-signal integrated circuits for sensor or wireless applications including Bluetooth, ZigBee, GPS, RFID or Near Field Communication chips. Typically these integrated circuits are used in low cost, high volume products that are battery-powered and must have low energy consumption. There are other applications where XAP processors have been used to good effect, such as wireless sensor networks and medical devices, e.g. hearing aids.