Hewlett-Packard 1000 series

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The Hewlett-Packard 1000 series was a computer family created by Hewlett-Packard in the 1970s .

The forerunner of the HP1000 was the HP2100 family of computers , the first model of which, the 2116A, was developed in the mid-1960s. HP offered the HP 1000 computer series mainly in the technical area with the multiuser operating system RTE ( Real-Time Executive ) or the single-user operating system DOS (not to be confused with MS-DOS ). The first computer systems came on the market in 1967 at purchase prices between 120,000 and 250,000 marks and were roughly in the performance range of the former competitors PDP-11 from Digital Equipment or the Nova 3 / D from Data General .

The programming was done in the languages BASIC , Fortran , ALGOL and HP-Assembler. The main technical features of the HP1000 were a 16-bit CPU with a two-channel DMA controller (i.e. two DMA operations could run simultaneously), a memory management unit (MMU) with page management and memory protection, and the expandability of the memory to up to 2 megabytes . Areas of application were graphic data processing and simulations as well as, in particular, operational control and monitoring in manufacturing companies. In connection with the modernized operating system variant RTE-A , HP1000 computers of the type HP1000 A (in the variants A 400, A 600, A 700 and A 900) built since 1982 were still used in the 1990s for laboratory data systems and as control computers, especially in Used in the area of ​​printing. The last HP1000 products were withdrawn from the market by Hewlett-Packard on November 1, 2000, and support for the A400, A600 and A990 CPUs ended in 2005.

In order to be able to continue to use the sometimes very extensive individual applications, which were developed on the HP1000, especially in the process control and monitoring environment, even after the end of support for the HP1000 family, Hewlett-Packard was originally developed and later by the company OrgaBIT, a comfortable migration tool called RTE-UX developed and used in the context of migration projects. With RTE-UX, HP1000 applications can be migrated to the Unix / Linux world and thus continue to be used.

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