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Common Hardware Reference Platform (CHRP) is a standard system architecture for PowerPC-based computer systems published jointly by IBM and Apple in 1995. Like its predecessor PReP, it was conceptualized as a design to allow various operating systems to run on an industry standard hardware platform, and specified the use of Open Firmware and RTAS for machine abstraction purposes.
Key to CHRP was the requirement for Open Firmware (also required in PReP-compliant systems delivered after June 1, 1995), which gave vendors greatly improved support during the boot process, allowing the hardware to be far more varied. PReP systems were never popular.
Apple UniNorth 2 AGP used in PowerPC 74xx Based Macs. Apple used their own type of northbridges which were custom ASICs manufactured by VLSI(later Philips),Texas Instruments and Lucent (later agere systems) List of Northbridge for PowerPC: IBM: CPC 700 and CPC 710 for IBM PowerPC 750 series. CPC 925 and CPC 945 for IBM PowerPC 970 series.
After two years of development, the resulting PowerPC ISA was introduced in 1993. A modified version of the RSC architecture, PowerPC added single-precision floating point instructions and general register-to-register multiply and divide instructions, and removed some POWER features. It also added a 64-bit version of the ISA and support for SMP.
The PowerPC 400 family is a line of 32-bit embedded RISC processor cores based on the PowerPC or Power ISA instruction set architectures.The cores are designed to fit inside specialized applications ranging from system-on-a-chip (SoC) microcontrollers, network appliances, application-specific integrated circuits (ASICs) and field-programmable gate arrays (FPGAs) to set-top boxes, storage ...
The PowerPC 604 contains 3.6 million transistors and was fabricated by IBM and Motorola with a 0.5 μm CMOS process with four levels of interconnect. The die measured 12.4 mm by 15.8 mm (196 mm 2) and drew 14-17 W at 133 MHz. It operated at speeds between 100 and 180 MHz. [22] [23] [24] Power PC 604 RISC microprocessor, lecture by Marvin Denman
June 23, 2011: Support for Mac OS 10.5 Leopard came to a end, formally ending Apple's support of PowerPC on Mac OS X. [54] [55] July 20, 2011: The release of Mac OS X 10.7 Lion formally ended Apple's support of PowerPC-based software. August 7, 2011: PowerPC hardware reached "vintage" status having been discontinued five years prior, ending ...
All three major seventh-generation game consoles contain PowerPC-based processors. Sony's PlayStation 3 console, released in November 2006, contains a Cell processor, including a 3.2 GHz PowerPC control processor and eight closely threaded DSP-like accelerator processors, seven active and one spare; Microsoft's Xbox 360 console, released in 2005, includes a 3.2 GHz custom IBM PowerPC chip with ...