Weitek (original) (raw)
Weitek war eine US-amerikanische Firma, die in den 1980er Jahren mathematische Koprozessoren für IBM-kompatible PC-Systeme (für 386er den 3167, für 486er den 4167) und Workstations (z. B. SUN) sowie Grafikkarten-Prozessoren (WEITEK 9000 bzw. 9100 evtl. mit Video-Coprozessor) entwarf und produzierte. Weitek ging in Insolvenz und wurde von der US-amerikanischen Firma Rockwell Semiconductor aufgekauft.
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| dbo:abstract | Weitek war eine US-amerikanische Firma, die in den 1980er Jahren mathematische Koprozessoren für IBM-kompatible PC-Systeme (für 386er den 3167, für 486er den 4167) und Workstations (z. B. SUN) sowie Grafikkarten-Prozessoren (WEITEK 9000 bzw. 9100 evtl. mit Video-Coprozessor) entwarf und produzierte. Weitek ging in Insolvenz und wurde von der US-amerikanischen Firma Rockwell Semiconductor aufgekauft. (de) Weitek Corporation fue una compañía de desarrollo de chips con base en San José, California. Originalmente concentrada en las unidades de coma flotante para algunos fabricantes de CPUs. A principios y mediados de los años 1980 los diseños de Witek se encontraban en muchos superordenadores que llevaban a cabo computación paralela. Para el 1995 fue muriendo en su mayor parte, y a finales del 1996 lo restante fue comprado por Rockwell Semiconductor y rápidamente desapareció. Weitek empezó en 1981, cuando algunos ingenieros de Intel dejaron la empresa para empezar su propia compañía. Weitek desarrollo coprocesadores matemáticos (FPU) para muchos sistemas, incluidos para los sistemas basados en el Motorola 68000, el 1064, y para los sistemas basados en el Intel i286, el 1067. Intel había quedado relegada en el desarrollo de su propio FPU para el procesador i386, para lo que Weitek desarrollo el 1167 para ellos. Upgrades posteriores de estos terminaron en el desarrollo de los 2167, 3167 y 4167. Más adelante desarrollaría similares FPUs para la arquitectura MIPS, conocida como la línea XL. En diciembre de 1996 Rockwell International publicó un comunicado anunciando que llegaron a un acuerdo para adquirir Weitek Corporation y mantener al menos 20 de sus empleados, con la finalidad de abrir una subsidiaria de Rockwell enfocada en desarrollo de procesadores multimedia de bajo costo. Finalmente la compañía cerro sus operaciones luego de ser vendida el 15 de septiembre de 1997. (es) L'azienda informatica californiana Weitek Corporation ha operato come produttore di unità di calcolo in virgola mobile (FPU) per workstation, supercomputer e personal computer dal 1981 al 1990-1991; come produttore di GPU e chipset per schede madri tra il 1991 e il 1996. Costituitasi nel 1981, Weitek Corporation produce per tutti gli anni ottanta, FPU ad alte prestazioni sia per schede video che per CPU (MIPS e PA-RISC) di workstation e supercomputer. Per il mercato PC, Weitek produce FPU da abbinare a processori Intel quali i286, i386 e l'i486 nella versione SX. Con la progressiva integrazione, nei primi anni '90, delle FPU all'interno delle CPU, Weitek perde il suo mercato di riferimento e cerca di riposizionarsi come produttore di framebuffer per workstation SPARC. Successivamente, nel 1991, Weitek inizia lo sviluppo e la produzione di GPU con la serie Power 9000, e di PC chipset con i modelli W464 e W564, entrambi con GPU integrata che sfruttano la RAM di sistema come memoria video, progettati per schede madri Intel 486 e Pentium compatibili. In progressivo declino, verso la metà degli anni '90, Weitek entra in crisi avviandosi verso il fallimento. Acquisita nel 1996, da parte del produttore di semiconduttori , interessato alle tecnologie sviluppate da Weitek nel campo dei framebuffer, l'azienda viene disciolta e cessa ogni attività. (it) Weitek（ウェイテック、Weitek Corporation）は、かつて存在したアメリカの半導体製造企業。特に他社のCPU向けのFPUを設計開発することを得意とした。 1980年代中盤、Weitekの設計したものは各種のハイエンドマシンや並列処理スーパーコンピュータなどで使われている。1990年代初め、各CPUはFPUを含めて設計されるようになってきたため、Weitekは汎用CPUとグラフィックドライバの市場に打って出ようとした。1995年、Weitekはほとんど倒産寸前となった。1996年後半には、残った資産はロックウェルの半導体部門に買収され、Weitekは消えていった。 (ja) Weitek Corporation was an American chip-design company that originally focused on floating-point units for a number of commercial CPU designs. During the early to mid-1980s, Weitek designs could be found powering a number of high-end designs and parallel-processing supercomputers. Weitek started in 1981, when several Intel engineers left to form their own company. Weitek developed math coprocessors for several systems, including those based on the Motorola 68000 family, the 1064 and 1164, and for Intel-based i286 systems, the 1067. Intel's own FPU design for the i386 fell far behind in development, and Weitek delivered the 1167 for them. The Weitek 1167 Floating Point Coprocessor provided the combination of Weitek 1163, 1164 and 1165 chipset. Later upgrades to this design led to the 2167, 3167 and 4167. Weitek would later outfit FPUs to the early SPARC architecture such as the 3170 and 3172. Weitek FPUs had several differences compared to x87 offerings, lacking extended double precision but having a register-file rather than a stack-based model, or using memory-mapped IO as opposed to port-mapped IO. As orders increased for supercomputer applications, Weitek found themselves seriously disadvantaged by their fab, which was becoming rather outdated. HP approached them with a deal to use their newer fabs. This proved advantageous for both, and soon HP's fabs were open to anyone. Weitek also worked with HP on the design of their latest PA-RISC design and sold their own version known as the RISC 8200, which was sold as an embedded design and had some use in laser printers. In the late 1980s Weitek saw a new opportunity and started developing frame buffers for Sun Microsystems workstations. In the early 1990s they also introduced the SPARC POWER μP (as in "power-up"), a pin-compatible version of the SPARC processor. The μP could be dropped into existing SPARCstation 2 and SPARCstation IPX workstations and ran at 80 MHz, double the clock speed of the CPUs it replaced. The chip ran twice as fast internally, providing a boost of about 50–60% in overall speed, due to the bus not getting any faster. However, they did not pursue this concept with later generations of SPARC processors. Weitek turned their frame-buffer experience to the PC market in the early 90s and introduced a series of SVGA multimedia chipsets known as the "POWER" systems. Consisting of two chips, one drawing the graphics known as the P9000 and another handling the output, the VideoPower 5x86, the POWER series was used in a number of third-party designs based on the VESA Local Bus standard. The P9001 moved to PCI and became fairly popular in 1994, known as the Viper in designs from Diamond and Orchid. The final generation, the P9100, combined the P9001 and 5286 into a single chip. Weitek adapters were fairly successful in the early days of the 486 market, but fell from use when less expensive systems were introduced by a host of new players in the mid-1990s. During the early 1990s most CPU designs started including FPUs built into the system, basically "for free", and Weitek made a series of attempts to re-enter the low-end CPU and graphics driver market with their W464 (486) and W564 (P5) systems, which used the host machine's RAM as the frame buffer to lower costs. By 1995 the company was almost dead, and in late 1996 the remains were purchased by Rockwell's Semiconductor Systems and quickly disappeared. (en) Weitek公司是美國一家無廠半導體業者，該公司最初專注在多種商用微處理器（CPU）的浮點運算單元（FPU）設計，而在1980年初期至中期Weitek公司為平行處理式的超級電腦提供多種高階運算設計。到了1990年初期由於多數的CPU已內建FPU，且基本上FPU功效為免費奉送，這迫使Weitek公司進行一連串的嘗試，嘗試跨進一般用途性的CPU及GPU的市場領域。此後到1995年Weitek近乎停止營運，隨後在1996年由（Rockwell International）的半導體系統部門所收購，並快速從市場上消失。 (zh) |
| dbo:fate | 1996 acquired by Rockwell's Semiconductor Systems (en) |
| dbo:foundingYear | 1981-01-01 (xsd:gYear) |
| dbo:location | dbr:San_Jose,_California |
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| dbo:wikiPageExternalLink | http://www.weitek.com/ http://www.cpu-collection.de/%3Ftn=1&l0=co&l1=Weitek https://web.archive.org/web/20050312042033/http:/www.aoc.nrao.edu/aips/weitek.html |
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| rdfs:comment | Weitek war eine US-amerikanische Firma, die in den 1980er Jahren mathematische Koprozessoren für IBM-kompatible PC-Systeme (für 386er den 3167, für 486er den 4167) und Workstations (z. B. SUN) sowie Grafikkarten-Prozessoren (WEITEK 9000 bzw. 9100 evtl. mit Video-Coprozessor) entwarf und produzierte. Weitek ging in Insolvenz und wurde von der US-amerikanischen Firma Rockwell Semiconductor aufgekauft. (de) Weitek（ウェイテック、Weitek Corporation）は、かつて存在したアメリカの半導体製造企業。特に他社のCPU向けのFPUを設計開発することを得意とした。 1980年代中盤、Weitekの設計したものは各種のハイエンドマシンや並列処理スーパーコンピュータなどで使われている。1990年代初め、各CPUはFPUを含めて設計されるようになってきたため、Weitekは汎用CPUとグラフィックドライバの市場に打って出ようとした。1995年、Weitekはほとんど倒産寸前となった。1996年後半には、残った資産はロックウェルの半導体部門に買収され、Weitekは消えていった。 (ja) Weitek公司是美國一家無廠半導體業者，該公司最初專注在多種商用微處理器（CPU）的浮點運算單元（FPU）設計，而在1980年初期至中期Weitek公司為平行處理式的超級電腦提供多種高階運算設計。到了1990年初期由於多數的CPU已內建FPU，且基本上FPU功效為免費奉送，這迫使Weitek公司進行一連串的嘗試，嘗試跨進一般用途性的CPU及GPU的市場領域。此後到1995年Weitek近乎停止營運，隨後在1996年由（Rockwell International）的半導體系統部門所收購，並快速從市場上消失。 (zh) Weitek Corporation fue una compañía de desarrollo de chips con base en San José, California. Originalmente concentrada en las unidades de coma flotante para algunos fabricantes de CPUs. A principios y mediados de los años 1980 los diseños de Witek se encontraban en muchos superordenadores que llevaban a cabo computación paralela. Para el 1995 fue muriendo en su mayor parte, y a finales del 1996 lo restante fue comprado por Rockwell Semiconductor y rápidamente desapareció. (es) Weitek Corporation was an American chip-design company that originally focused on floating-point units for a number of commercial CPU designs. During the early to mid-1980s, Weitek designs could be found powering a number of high-end designs and parallel-processing supercomputers. (en) L'azienda informatica californiana Weitek Corporation ha operato come produttore di unità di calcolo in virgola mobile (FPU) per workstation, supercomputer e personal computer dal 1981 al 1990-1991; come produttore di GPU e chipset per schede madri tra il 1991 e il 1996. Costituitasi nel 1981, Weitek Corporation produce per tutti gli anni ottanta, FPU ad alte prestazioni sia per schede video che per CPU (MIPS e PA-RISC) di workstation e supercomputer. Per il mercato PC, Weitek produce FPU da abbinare a processori Intel quali i286, i386 e l'i486 nella versione SX. (it) |
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