HP Focus
The FOCUS - CPU is one of the first 32-bit CPUs and was designed by Hewlett-Packard developed (HP). It is based on a pre- RISC design, a stack architecture , and achieved a spectacular 18 MHz for the time. The instruction set comprised approx. 220 instructions, some of which were only 16 bits wide. In 1982, the first system from the HP 9000 series 500 workstation series was the model 9020 equipped with this CPU. HP-UX was used as the operating system back then .
The experience with the HP-FOCUS-CPU and the PRISM -CPU from Apollo Computer Inc. were important cornerstones in the development of the HP- PA-RISC -CPU series. From 1989 the FOCUS-based series were replaced by the then new PA-RISC architecture.
Probably in allusion to the on-board computer HAL 9000 from Stanley Kubrick's 2001: A Space Odyssey , HP equipped its extremely innovative FOCUS series with the 9000 suffix for the first time. All later systems based on HP-UX also have this suffix.
Individual evidence
- ↑ Kevin P. Burkhart: An 18-MHz, 32-bit VLSI Microprocessor. In: Hewlett Packard Journal. August 1983, pp. 7-10, .pdf, accessed August 28, 2014.
- ^ Paul Weissmann, Frank McConnell: HP 9000/500.
- ^ Arthur C. Clarke: 2001 - A Space Odyssey. 2000, ISBN 0-451-45799-4 .