Precision Architecture RISC (PA-RISC) or Hewlett Packard Precision Architecture (HP/PA or simply HPPA), is a general purpose computer instruction set architecture (ISA) developed by Hewlett-Packard from the 1980s until the 2000s.

PA-RISC es el nombre por el que se conoce una arquitectura de microprocesadores desarrollada por sistemas Hewlett-Packard y VLSI Technology Operation. Esta arquitectura se basa en el modelo RISC y en PA ( Precision Architecture ).

The PA-RISC architecture and instruction set were built from the ground up by HP engineers. PA-RISC was implemented almost exlusively in HP processors, from early version in TTL and NMOS in the 1980s to more modern integrated 32-bit (PA-7x00) and 64-bit (PA-8x00) RISC processors.

Beginning in the late 1980s, PA-RISC systems often wore the crown of fastest technical (RISC and Unix) workstations until the heydays of the 90s, albeit at a (boutique) price. PA-RISC was relegated in the 2000s to a niche market with the rp Integrity PA-RISC servers.

The PA-8000 (PCX-U), code-named Onyx, is a microprocessor developed and fabricated by Hewlett-Packard (HP) that implemented the PA-RISC 2.0 instruction set architecture (ISA). [1] It was a completely new design with no circuitry derived from previous PA-RISC microprocessors.

2024年11月11日 · Online since 1999, there are more than 140 OpenPA articles on PA-RISC, a technical computer architecture developed by HP in the 1980s and 1990s: Hardware: OpenPA covers HP PA-RISC architecture and processors from early RISC experiments in the 1980s to 64-bit multicore CPUs in custom HP RISC designs.

PA-RISC es una arquitectura de conjunto de instrucciones (ISA) desarrollada por Hewlett-Packard. Como su nombre lo indica, es una arquitectura de computadora con conjunto de instrucciones reducido (RISC), donde PA significa Arquitectura de precisión .

The PA-RISC project provides a native port of Linux to the PA-RISC architecture. The port was merged into linux-2.6 and linux-3.x mainstream kernel tree. PA-RISC Linux Project History tells how the project got started and the first steps.

2023年6月18日 · PA-RISC es una arquitectura de microprocesadores desarrollada por Hewlett-Packard y VLSI con diseño RISC. Se usaron principalmente en HP 3000, siendo de 32 bits, y luego se actualizó a 64 bits. Se lanzaron diferentes modelos con mayores velocidades y …

Hitachi PA/50 Overview. The PA/50 were PA-RISC version 1.1 compatible PA-RISC CPUs designed and manufactured by Hitachi. Two designs were developed: the ' M' and ' L'. The ' L' being a lower cost lowe voltage (3.3V) embedded version.. They were meant as personal workstation or high-end embedded controllers.