PA-RISC
PA-RISC is a Microprocesseur used in work stations of the company Hewlett-Packard. Its name comes from the type of selected architecture: RISC, and Pa indicates “Precision-Architecture”. Pa is also regarded by some as indicating Palo Alto, city where the head office of Hewlett-Packard is located.
Architecture PA-RISC is the research result concerning the development of the first processor 32 bits in the world, the Focus. This architecture proposes a complete instruction set making it possible to optimize the management of the Pipeline during compilation. One can thus regard it as a first approach of VLIW and, later, architecture EPIC proposed in the Itanium of Intel.
The PA-RISC was the processor intended to replace the older generations 16 bits on the servers of the series HP 3000 as well as the processors of the type Motorola 680x0 on the work stations and waiters Unix of HP. It is in the perfect line of processors RISC.
One of technologies used in a version of the PA-RISC, the PA-7100 and intended to accelerate the treatments for the MultiMedia applications constitutes an outline of what then Intel with its technology MX will do.
Related articles
External bonds
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parisc-linux.org: Bearing of Linux on PA-RISC
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