HP Focus

The Hewlett- Packard (HP) developed FOCUS CPU is a first 32-bit CPUs. It is based on a pre - RISC design, a STACK architecture, and reached for that time spectacular 18 MHz. The command set included about 220 instructions, some of which, however, only 16 bits wide. As the first system, the model was created in 1982 from the HP 9000 Series 500 workstation series 9020 equipped with this CPU. The operating system is HP- UX was already at that time used. The experience with the HP- FOCUS CPU, as in PRISM CPU of Apollo Computer Inc., were important cornerstone in the development of the HP PA - RISC CPU series. As of 1989, the FOCUS -based series were replaced by the then new PA - RISC architecture.

Well in allusion to the omniscient HAL 9000 in Stanley Kubrick's 2001: A Space Odyssey equipped HP first launched its highly innovative FOCUS series with the suffix 9000. All subsequent HP- UX based systems also carry this suffix.

  • Microprocessor
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