
HP 9000 is a line of
workstation
A workstation is a special computer designed for technical or computational science, scientific applications. Intended primarily to be used by a single user, they are commonly connected to a local area network and run multi-user operating syste ...
and
server computer
A computer is a machine that can be Computer programming, programmed to automatically Execution (computing), carry out sequences of arithmetic or logical operations (''computation''). Modern digital electronic computers can perform generic set ...
systems produced by the
Hewlett-Packard
The Hewlett-Packard Company, commonly shortened to Hewlett-Packard ( ) or HP, was an American multinational information technology company. It was founded by Bill Hewlett and David Packard in 1939 in a one-car garage in Palo Alto, California ...
(HP) Company. The native
operating system
An operating system (OS) is system software that manages computer hardware and software resources, and provides common daemon (computing), services for computer programs.
Time-sharing operating systems scheduler (computing), schedule tasks for ...
for almost all HP 9000 systems is
HP-UX
HP-UX (from "Hewlett Packard Unix") is a proprietary software, proprietary implementation of the Unix operating system developed by Hewlett Packard Enterprise; current versions support HPE Integrity Servers, based on Intel's Itanium architect ...
, which is based on
UNIX System V.
The HP 9000 brand was introduced in 1984 to encompass several extant technical workstation models launched formerly in the early 1980s. Most of these were based on the
Motorola 68000 series
The Motorola 68000 series (also known as 680x0, m68000, m68k, or 68k) is a family of 32-bit computing, 32-bit complex instruction set computer (CISC) microprocessors. During the 1980s and early 1990s, they were popular in personal computers and ...
, but there were also entries based on HP's own
FOCUS designs. From the mid-1980s, the line was transitioned to HP's new
PA-RISC
Precision Architecture reduced instruction set computer, RISC (PA-RISC) or Hewlett Packard Precision Architecture (HP/PA or simply HPPA), is a computer, general purpose computer instruction set architecture (ISA) developed by Hewlett-Packard f ...
architecture. Finally, in the 2000s, systems using the
IA-64 were added.
The HP 9000 server line was discontinued in 2003, being superseded by
Itanium-based
Integrity Servers running HP-UX. The HP 9000 workstation line was discontinued in 2009, being superseded by
HP Z.
History

The first HP 9000 models comprised the HP 9000 Series 200 and Series 500 ranges. These were rebadged existing models, the Series 200 including various
Motorola
Motorola, Inc. () was an American multinational telecommunications company based in Schaumburg, Illinois. It was founded by brothers Paul and Joseph Galvin in 1928 and had been named Motorola since 1947. Many of Motorola's products had been ...
68000 (68k) based workstations such as the HP 9826 and HP 9836, and the Series 500 using HP's
FOCUS microprocessor
A microprocessor is a computer processor (computing), processor for which the data processing logic and control is included on a single integrated circuit (IC), or a small number of ICs. The microprocessor contains the arithmetic, logic, a ...
architecture introduced in the HP 9020 workstation. These were followed by the HP 9000 Series 300 and Series 400 workstations, which also used 68k-series microprocessors. From the mid-1980s onward, HP began changing to its own microprocessors based on its proprietary
PA-RISC
Precision Architecture reduced instruction set computer, RISC (PA-RISC) or Hewlett Packard Precision Architecture (HP/PA or simply HPPA), is a computer, general purpose computer instruction set architecture (ISA) developed by Hewlett-Packard f ...
instruction set architecture
In computer science, an instruction set architecture (ISA) is an abstract model that generally defines how software controls the CPU in a computer or a family of computers. A device or program that executes instructions described by that ISA, ...
(ISA), for the Series 600, 700, 800, and later lines. More recent models use either the PA-RISC or its successor, the HP–Intel
IA-64 ISA.
All of the HP 9000 line run various versions of the
HP-UX
HP-UX (from "Hewlett Packard Unix") is a proprietary software, proprietary implementation of the Unix operating system developed by Hewlett Packard Enterprise; current versions support HPE Integrity Servers, based on Intel's Itanium architect ...
operating system
An operating system (OS) is system software that manages computer hardware and software resources, and provides common daemon (computing), services for computer programs.
Time-sharing operating systems scheduler (computing), schedule tasks for ...
, except earlier Series 200 models, which ran standalone applications or the Basic Workstation / Pascal 3.1 Workstation
operating systems. HP released the Series 400, also known as the Apollo 400, after acquiring
Apollo Computer in 1989. These models had the ability to run either HP-UX or Apollo's
Domain/OS.
From the early 1990s onward, HP replaced the HP 9000 ''Series'' numbers with an alphabetical ''Class'' nomenclature. In 2001, HP again changed the naming scheme for their HP 9000 servers. The A-class systems were renamed as the rp2400s, the L-class became the rp5400s, and the N-class the rp7400s. The ''rp'' prefix signified a PA-RISC architecture, while ''rx'' was used for IA-64-based systems, later rebranded
HPE Integrity Servers.
In 2003, HP launched the xw series, which uses x86 processors and runs
Windows
Windows is a Product lining, product line of Proprietary software, proprietary graphical user interface, graphical operating systems developed and marketed by Microsoft. It is grouped into families and subfamilies that cater to particular sec ...
. The xw series remained until 2009 when it was replaced by HP Z.
On 30 April 2008, HP announced end of sales for the PA-RISC-based HP 9000. The last order date for PA-RISC-based HP 9000 systems was 31 December 2008 and the last ship date was 1 April 2009. The last order date for new HP 9000 PA-RISC options was December 31, 2009, with a last ship date of 1 April 2010. HP intends to support these systems through to 2013, with possible extensions.
The end of life for HP 9000 also marks the end of an era, as it essentially marks HP's withdrawal from the Unix workstation market (the HP 9000 workstations are end of life, and there are no HP Integrity workstations, so there is no longer a solution which targets HP/UX at the desktop). When the move from PA-RISC (9000) to Itanium (Integrity) was announced, Integrity workstations running either HP/UX or Windows were initially announced and offered, but were moved to end of sales life relatively quickly, with no replacement (arguably because x86-64 made IA-64 uncompetitive on the desktop, and HP/UX does not support x86-64, with HP offering desktop Linux as an alternative, not fully compatible, solution).
Workstation models
Prior to January 1985 (see also
HP 9800 series
The HP 9800 is a family of what were initially called programmable calculators and later desktop computers that were made by Hewlett-Packard, replacing their first HP 9100 calculator. It is also named "98 line". The 9830 and its successors were ...
):
*''Series 200'' 16 (HP 9816), 20 (HP 9920), 26 (HP 9826), 36 (HP 9836)
*''Series 500'' 20 (HP 9020), 30 (HP 9030), 40 (HP 9040)
After 1985:
*''Series 200'' 216 (HP 9816), 217 (HP 9817), 220 (HP 9920), 226 (HP 9826), 236 (HP 9836), 237 (HP 9837)
*''Series 300'' 310, 318, 319, 320, 322, 330, 332, 340, 345, 350, 360, 362, 370, 375, 380, 382, 385
*''Series 400 (HP Apollo 9000 Series 400)'' 400dl, 400s, 400t, 425dl, 425e, 425s, 425t, 433dl, 433s, 433t
*''Series 500'' 520 (HP 9020), 530 (HP 9030), 540 (HP 9040), 550, 560
*''Series 600'' 635SV, 645SV
*''Series 700'' 705, 710, 712, 715, 720, 725, 730, 735, 742, 743, 744, 745, 747, 748, 750, 755
*''B-class'' B132L, B160L, B132L+, B180L, B1000, B2000, B2600
*''C-class'' C100, C110, C132L, C160, C160L, C180, C180L, C180XP, C200, C240, C360, C3000, C3600, C3650, C3700, C3750, C8000
*''J-class'' J200, J210, J210XC, J280, J282, J2240, J5000, J5600, J6000, J6700, J6750, J7000
Series 200
The Series 200 workstations originated before there were any "Series" at HP. The first model was the HP 9826A, followed by the HP 9836A. Later, a color version of the 9836 (9836C) was introduced. There was also a rack-mount version, the HP 9920A. These were all based on the
Motorola 68000 chip. There were 'S' versions of the models that included memory bundled in. When HP-UX was included as an OS, there was a 'U' version of the 9836s and 9920 that used the
68012 processor. The model numbers included the letter 'U' (9836U, 9836CU, and 9920U). Later versions of the Series 200's included the 9816, 9817, and 9837. These systems were soon renamed as the HP Series 200 line, before being renamed again as part HP 9000 family, the HP 9000 Series 200.
There was also a "portable" version of the Series 200 called the
Integral
In mathematics, an integral is the continuous analog of a Summation, sum, which is used to calculate area, areas, volume, volumes, and their generalizations. Integration, the process of computing an integral, is one of the two fundamental oper ...
. The official model was the HP9807. This machine was about the size of a portable sewing machine, contained a MC68000 processor, ROM based HP-UX, 3½ inch
floppy disk
A floppy disk or floppy diskette (casually referred to as a floppy, a diskette, or a disk) is a type of disk storage composed of a thin and flexible disk of a magnetic storage medium in a square or nearly square plastic enclosure lined with a ...
drive, inkjet printer, a keyboard, mouse, and an electroluminescent display similar to the early GRiD Compass computers. It was not battery powered, and unlike the other Series 200's that were manufactured in
Fort Collins, Colorado
Fort Collins is a List of municipalities in Colorado#Home rule municipality, home rule municipality in Larimer County, Colorado, United States, and its county seat. The population was 169,810 at the 2020 United States census, 2020 census, an i ...
, it was made in
Corvallis, Oregon.
Series 300/400

The Series 300 workstations were based around Motorola 68000-series processors, ranging from the
68010 (Model 310, introduced 1985) to the
Motorola 68040 (Model 38x, introduced 1991). The Series 400 (introduced 1990) were intended to supersede the
Apollo/Domain workstations and were also based on the 68030/040. They were branded "HP Apollo" and added Apollo
Domain/OS compatibility. The suffix 's' and 't' used on the Series 400 represented "Side" (as in Desk side) and "Top" (as in Desk top) model. The last two digits of the Series 400 originally was the clock frequency of the processor in MHz (e.g. 433 was 33 MHz). At introduction, the Series 400 had a socket for the MC68040, but since they were not available at the time, an emulator card with an MC68030 and additional circuitry was installed. Customers who purchased systems were given a guaranteed upgrade price of $5,000USD to the MC68040, when they became available. The Series 300 and 400 shared the same I/O interface as the Series 200. The 32-bit DIO-II bus is rated at 6 MB/s.
Series 500
The Series 500s were based on the
HP FOCUS microprocessor. They began as the HP 9020, HP 9030, and HP 9040, were renamed the HP Series 500 Model 20, 30, and 40 shortly after introduction, and later renamed again as the HP 9000 Model 520, 530 and 540. The 520 was a complete workstation with built-in keyboard, display, 5.25-inch floppy disk, and optional thermal printer and 5 MB hard disk. The 520 could run
BASIC
Basic or BASIC may refer to:
Science and technology
* BASIC, a computer programming language
* Basic (chemistry), having the properties of a base
* Basic access authentication, in HTTP
Entertainment
* Basic (film), ''Basic'' (film), a 2003 film
...
or HP-UX and there were three different models based on the displays attached (two color and one monochrome). The 530 was a
rackmount version of the Series 500, could only run HP-UX, and used a serial interface console. The 540 was a 530 mounted inside a cabinet, similar to the disk drives offered then and included a serial
multiplexer
In electronics, a multiplexer (or mux; spelled sometimes as multiplexor), also known as a data selector, is a device that selects between several Analog signal, analog or Digital signal (electronics), digital input signals and forwards the sel ...
(MUX). Later models of the Series 500s were the 550 and 560, which had a completely different chassis and could be connected to graphics processors. The processors in the original Series 500s ran at 20 MHz, and could reach a benchmark speed of 1 million
instructions per second
Instructions per second (IPS) is a measure of a computer's Central processing unit, processor speed. For complex instruction set computers (CISCs), different Machine code, instructions take different amounts of time, so the value measured depen ...
(MIPS), equivalent to a
VAX-11
The VAX-11 is a discontinued family of 32-bit superminicomputers, running the Virtual Address eXtension (VAX) instruction set architecture (ISA), developed and manufactured by Digital Equipment Corporation (DEC). Development began in 1976. In ...
/780, then a common benchmark standard. They could be networked together and with 200 and 300 series using the Shared Resource Manager (SRM).
Because of their performance, the US government placed the 500 series on its export restricted list. The computers were only permitted to be sold in Western Europe,
Canada
Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...
,
Australia
Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...
, and
New Zealand
New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ...
, with any other country needing written approval.
Series 700

The first workstations in the series, the Model 720, Model 730 and Model 750 systems were introduced on 26 March 1991 and were code-named "Snakes". The models used the PA-7000 microprocessor, with the Model 720 using a 50 MHz version and the Model 730 and Model 750 using a 66 MHz version. The PA-7000 is provided with 128 KB of instruction cache on the Model 720 and 730 and 256 KB on the Model 750. All models are provided with 256 KB of data cache. The Model 720 and Model 730 supported 16 to 64 MB of memory, while the Model 750 supported up to 192 MB. Onboard SCSI was provided by an
NCR 53C700 SCSI controller. These systems could use both 2D and 3D graphics options, with 2D options being the greyscale GRX and the color CRX. 3D options were the Personal VRX and the Turbo GRX.
In early January 1992, HP introduced the Model 705, code-named "Bushmaster Snake", and the Model 710, code-named "Bushmaster Junior". Both systems are low-end diskless workstations, with the Model 705 using a 32 MHz PA-7000 and the Model 710 using a 50 MHz version. At introduction, the Model 705 was priced at under US$5,000, and the Model 710 under US$10,000.
The first Series 700 workstations were superseded by the Model 715/33, 715/50, 725/50 low-end workstations and the Model 735/99, 735/125, 755/99 and 755/125 high-end workstations on 10 November 1992. The existing Model 715 and Model 725 were later updated with the introduction of the Model 715/75 and 725/75 in September 1993. The new models used a 75 MHz
PA-7100.
Increasing integration led to the introduction of the Model 712/60 and Model 712/80i workstations on 18 January 1994. Code-named "Gecko", these models were intended to compete with entry-level workstations from
Sun Microsystems
Sun Microsystems, Inc., often known as Sun for short, was an American technology company that existed from 1982 to 2010 which developed and sold computers, computer components, software, and information technology services. Sun contributed sig ...
and high-end personal computers. They used the
PA-7100LC microprocessor operating at 60 and 80 MHz, respectively. The Model 712/80i was an integer only model, with the floating point-unit disabled. Both supported 16 to 128 MB of memory.
The Model 715/64, 715/80, 715/100 and 725/100 were introduced in May 1994, targeted at the 2D and 3D graphics market. These workstations use the PA-7100LC microprocessor and supported 32 to 128 MB of memory, except for the Model 725/100, which supported up to 512 MB.
The Model 712/100 (''King Gecko''), an entry-level workstation, and Model 715/100 XC, a mid-range workstation, were introduced in June 1995. The Model 712/100 is a Model 712 with a 100 MHz PA-7100LC and 256 KB of cache while the Model 715/100 XC is a Model 715/100 with 1 MB of cache.
The Model 712 and 715 workstations feature the Lasi ASIC, connected by the
GSC bus. The Lasi ASIC provided an integrated NCR 53C710 SCSI controller, an Intel Apricot 10 Mbit Ethernet interface, CD-quality sound, PS/2 keyboard and mouse, a serial and a parallel port. All models, except for the 712 series machines also use the Wax ASIC to provide an
EISA adapter, a second serial port and support for the
HIL bus.
The SGC bus (System Graphics Connect), which is used in the earlier series 700 workstations, has similar specifications as
PCI with 32-bit/33 MH
and a typical bandwidth of about 100 MB/
The SAIC Galaxy 1100 is a portable PA-RISC workstation based on the HP 9000/712 workstation in a
Rugged computer, ruggedized case, originally built by SAIC in the 1990s for military and intelligence applications.The workstation weighed 16 pounds and uses a 10.4" LCD screen, supporting a resolution up to .
VME Industrial Workstations
Models 742i, 743i, 744, 745/745i, 747i, 748i.
B, C, J class

The C100, C110, J200, J210 and J210XC use the
PA-7200 processor, connected to the UTurn IOMMU via the
Runway bus. The C100 and C110 are single processor systems, and the J200 and J210 are dual processor systems. The Uturn IOMMU has two GSC buses. These machines continue to use the Lasi and Wax ASICs.
The B132L (introduced 1996), B160L, B132L+, B180L, C132L, C160L and C180L workstations are based on the
PA-7300LC processor, a development of the PA-7100LC with integrated cache and GSC bus controller. Standard graphics is the
Visualize EG. These machines use the Dino GSC to
PCI adapter which also provides the second serial port in place of Wax; they optionally have the Wax EISA adapter.
The C160, C180, C180-XP, J280 and J282 use the
PA-8000 processor and are the first 64-bit HP workstations. They are based on the same Runway/GSC architecture as the earlier C and J class workstations.
The C200, C240 and J2240 offer increased speed with the
PA-8200 processor and the C360 uses the
PA-8500 processor.
The B1000, B2000, C3000, J5000 and J7000 were also based on the PA-8500 processor, but had a very different architecture. The U2/Uturn IOMMU and the GSC bus is gone, replaced with the Astro IOMMU, connected via Ropes to several Elroy PCI host adapters.
The B2600, C3600 and J5600 upgrade these machines with the
PA-8600 processor. The J6000 is a rack-mountable workstation which can also be stood on its side in a tower configuration.
The C3650, C3700, C3750, J6700 and J6750 are
PA-8700-based.
The C8000 uses the dual-core
PA-8800 or
PA-8900 processors, which uses the same bus as the McKinley and Madison Itanium processors and shares the same
zx1 chipset. The Elroy PCI adapters have been replaced with Mercury
PCI-X adapters and one Quicksilver
AGP 8x adapter.
Server models

*''800 Series'' 807, 817, 822, 825, 827, 832, 835, 837, 840, 842, 845, 847, 850, 855, 857, 867, 877, 887, 897
*''1200 FT Series'' 1210, 1245, 1245 PLUS
*''A-class'' A180, A180C (''Staccato''), A400, A500
*''D-class'' D200, D210, D220, D230, D250, D260, D270, D280, D300, D310, D320, D330, D350, D360, D370, D380, D390
*''E-class'' E25, E35, E45, E55
*''F-class'' F10, F20, F30 (''Nova'')
*''G-class'' G30, G40, G50, G60, G70 (''Nova'' / ''Nova64'')
*''H-class'' H20, H30, H40, H50, H60, H70
*''I-class'' I30, I40, I50, I60, I70
*''K-class'' K100, K200, K210, K220, K250, K260, K360, K370, K380, K400, K410, K420, K450, K460, K570, K580
*''L-class'' L1000, L1500, L2000, L3000
*''N-class'' N4000
*''N-class'' N4004
*''N-class'' N4005
*''N-class'' N4006
*''R-class'' R380, R390
*''S-class'' rebadged Convex Exemplar SPP2000 (single-node)
*''T-class'' T500, T520, T600
*''V-class'' V2200, V2250, V2500, V2600
*''X-class'' rebadged Convex Exemplar SPP2000 (multi-node)
*''rp2400'' rp2400 (A400), rp2405 (A400), rp2430 (A400), rp2450 (A500), rp2470 (A500) (former A-class)
*''rp3400'' rp3410-2, rp3440-4 (1-2 PA-8800/8900 processors)
*''rp4400'' rp4410-4, rp4440-8
*''rp5400'' rp5400, rp5405, rp5430, rp5450, rp5470 (former L-class)
*''rp7400'' rp7400 (former N-class)
*''rp7405'' rp7405, rp7410, rp7420-16, rp7440-16
*''rp8400'' rp8400, rp8410, rp8420-32, rp8440-32
*''
HP 9000 Superdome'' SD-32, SD-64, SD-128 (PA-8900 processors)
D-class (Codename: Ultralight)
The D-class are entry-level and mid-range servers that succeeded the entry-level E-class servers and the mid-range G-, H-, I-class servers. The first models were introduced in late January 1996, consisting of the Model D200, D210, D250, D310 and D350. The Model D200 is a uniprocessor with a 75 MHz
PA-7100LC microprocessor, support for up to 512 MB of memory and five EISA/HP-HSC slots. The Model D210 is similar, but it used a 100 MHz PA-7100LC. The Model D250 is dual-processor model and it used the 100 MHz PA-7100LC. It supported up to 768 MB of memory and had five EISA/HP-HSC slots. The Model D310 is a uniprocessor with a 100 MHz PA-7100LC, up to 512 MB of memory and eight EISA/HP-HSC slots. The Model D350 is a high-end D-class system, a dual-processor, it had two 100 MHz PA-7100LCs, up to 768 MB of memory and eight EISA/HP-HSC slots.
In mid-September 1996, two new D-class servers were introduced to utilize the new 64-bit PA-8000 microprocessor, the Model D270 uniprocessor and the Model D370 dual-processor. Both were positioned as entry-level servers. They used the 160 MHz PA-8000 and supported 128 MB to 1.5 GB of memory.
["HP Launches Commercial PA-8000 Lines"]
In January 1997, the low-end Model D220, D230, D320 and D330 were introduced, using 132 and 160 MHz versions of the
PA-7300LC microprocessor.
["HP Overhauls Its Low-End UNIX Servers With The PA-7300LC"]
The D-class are tower servers with up to two microprocessors and are architecturally similar to the K-class. They sometimes masquerade as larger machines as HP shipped them mounted vertically inside a large cabinet containing a power supply and multiple disks with plenty of room for air to circulate.
R-class
The R-class is simply a D-class machine packaged in a
rack-mount chassis. Unlike the D-class systems, it does not support hot-pluggable disks.
N-class

The N-class is a 10U rackmount server with up to eight
CPUs and 12
PCI slots. It uses two Merced buses, one for every four processor slots. It is not a
NUMA machine, having equal access to all memory slots. The I/O is unequal though; having one Ike
IOMMU per bus means that one set of CPUs are closer to one set of I/O slots than the other.
The N-class servers were marketed as "
Itanium-ready", although when the Itanium shipped, no Itanium upgrade was made available for the N class. The N class did benefit from using the Merced bus, bridging the PA-8x00 microprocessors to it via a special adapter called DEW.
The N4000 was upgraded with newer processors throughout its life, with models called N4000-36, N4000-44 and N4000-55 indicating microprocessor clock frequencies of 360, 440, and 550 MHz, respectively. It was renamed to the rp7400 series in 2001.
L-class
The L-class servers are 7U rackmount machines with up to 4 CPUs (depending on model). They have 12 PCI slots, but only 7 slots are enabled in the entry-level L1000 system. Two of the PCI slots are occupied by factory integrated cards and cannot be utilized for I/O expansion by the end-user.
The L1000 and L2000 are similar to the A400 and A500, being based on an Astro/Elroy combination. They initially shipped with 360 MHz and 440 MHz PA-8500 and were upgraded with 540 MHz PA-8600.
The L3000 is similar to the N4000, being based on a DEW/Ike/Elroy combination. It shipped only with 550 MHz PA-8600 CPUs.
The L-class family was renamed to the rp5400 series in 2001.
A-class
The A180 and A180C were 32-bit, single-processor, 2U servers based on the
PA-7300LC processor with the Lasi and Dino ASICs.
The A400 and A500 servers were 64-bit, single and dual-processor 2U servers based on the
PA-8500 and later processors, using the Astro IOMMU and Elroy PCI adapters. The A400-36 and A500-36 machines used the PA-8500 processor running at 360 MHz; the A400-44 and A500-44 are clocked at 440 MHz. The A500-55 uses a
PA-8600 processor running at 550 MHz and the A500-75 uses a
PA-8700 processor running at 750 MHz.
The A-class was renamed to the rp2400 series in 2001.
S/X-class
The S- and X-class were Convex Exemplar SPP2000
supercomputer
A supercomputer is a type of computer with a high level of performance as compared to a general-purpose computer. The performance of a supercomputer is commonly measured in floating-point operations per second (FLOPS) instead of million instruc ...
s rebadged after HP's acquisition of
Convex Computer in 1995. The S-class was a single-node SPP2000 with up to 16 processors, while the X-class name was used for multi-node configurations with up to 512 processors. These machines ran Convex's SPP-UX operating system.
V-class
The V-class servers were based on the
multiprocessor
Multiprocessing (MP) is the use of two or more central processing units (CPUs) within a single computer system. The term also refers to the ability of a system to support more than one processor or the ability to allocate tasks between them. The ...
technology from the S-class and X-class. The V2200 and V2250 support a maximum of 16 processors, and the V2500 and V2600 support a maximum of 32 processors. The V-class systems are physically large systems that need extensive cooling and
three-phase electric power
Three-phase electric power (abbreviated 3ϕ) is a common type of alternating current (AC) used in electricity generation, transmission, and distribution. It is a type of polyphase system employing three wires (or four including an optional n ...
to operate. They provided a transitional platform between the T-class and the introduction of the Superdome.
Operating systems

Apart from HP-UX and Domain/OS (on the 400), many HP 9000s can also run the
Linux
Linux ( ) is a family of open source Unix-like operating systems based on the Linux kernel, an kernel (operating system), operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically package manager, pac ...
operating system. Some PA-RISC-based models are able to run
NeXTSTEP
NeXTSTEP is a discontinued object-oriented, multitasking operating system based on the Mach kernel and the UNIX-derived BSD. It was developed by NeXT, founded by Steve Jobs, in the late 1980s and early 1990s and was initially used for its ...
.
Berkeley Software Distribution
The Berkeley Software Distribution (BSD), also known as Berkeley Unix or BSD Unix, is a discontinued Unix operating system developed and distributed by the Computer Systems Research Group (CSRG) at the University of California, Berkeley, beginn ...
(BSD) Unix was ported to the HP 9000 as
HPBSD; the resulting support code was later added to
4.4BSD. Its modern variants
NetBSD
NetBSD is a free and open-source Unix-like operating system based on the Berkeley Software Distribution (BSD). It was the first open-source BSD descendant officially released after 386BSD was fork (software development), forked. It continues to ...
and
OpenBSD
OpenBSD is a security-focused operating system, security-focused, free software, Unix-like operating system based on the Berkeley Software Distribution (BSD). Theo de Raadt created OpenBSD in 1995 by fork (software development), forking NetBSD ...
also support various HP 9000 models, both Motorola 68k and PA-RISC based.
In the early 1990s, several
Unix
Unix (, ; trademarked as UNIX) is a family of multitasking, multi-user computer operating systems that derive from the original AT&T Unix, whose development started in 1969 at the Bell Labs research center by Ken Thompson, Dennis Ritchie, a ...
R&D systems were ported to the PA-RISC platform, including several attempts of
OSF/1, various
Mach
The Mach number (M or Ma), often only Mach, (; ) is a dimensionless quantity in fluid dynamics representing the ratio of flow velocity past a Boundary (thermodynamic), boundary to the local speed of sound.
It is named after the Austrian physi ...
ports and systems that combined parts of Mach with other systems (
MkLinux, Mach 4/Lites). The origin of these ports were mostly either internal
HP Labs
HP Labs is the exploratory and advanced research group for HP Inc. HP Labs' headquarters is in Palo Alto, California and the group has research and development facilities in Bristol, UK. The development of programmable desktop calculators, ink ...
projects or HP products, or academic research, mostly at the
University of Utah
The University of Utah (the U, U of U, or simply Utah) is a public university, public research university in Salt Lake City, Utah, United States. It was established in 1850 as the University of Deseret (Book of Mormon), Deseret by the General A ...
.
One project conducted at HP Laboratories involved replacing core HP-UX functionality, specifically the virtual memory and process management subsystems, with Mach functionality from Mach 2.0 and 2.5. This effectively provided a vehicle to port Mach to the PA-RISC architecture, as opposed to starting with the Berkeley Software Distribution configured to use the Mach kernel infrastructure and porting this to PA-RISC, and thereby delivered a version of HP-UX 2.0 based on Mach, albeit with certain features missing from both Mach and HP-UX. The motivation for the project was to investigate performance issues with Mach related to the cache architecture of PA-RISC along with potential remedies for these issues.
See also
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HP 3000
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HPE Integrity Servers
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HP Superdome
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HP 9800 series
The HP 9800 is a family of what were initially called programmable calculators and later desktop computers that were made by Hewlett-Packard, replacing their first HP 9100 calculator. It is also named "98 line". The 9830 and its successors were ...
, prior series of scientific computer workstations
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HP 7935 disc drive
Notes
External links
HP 9000 evolution HP 9000 evolution to HP Integrity
Official HP Mission-Critical Musings Blog
HP 9836 at old-computers.comHP Computer Museumhp-series300.netInformation resource on HP 9000 Series 300 computers
OpenPA.netInformation resource on HP PA-RISC-based computers, including HP 9000/700, 800 and later systems
Site communautaire sur les stations de travail et serveurs hp9000, regroupant des informations, part number ainsi que de la documentation au format PDF.
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9000
9000
Computer workstations
Computer-related introductions in 1984
32-bit computers
64-bit computers