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SPARCstation 20 Front
The SPARCstation, SPARCserver and SPARCcenter product lines are a series of SPARC-based computer workstations and server (computing), servers in desktop, desk side (pedestal) and rack-based form factor configurations, that were developed and sold by Sun Microsystems. The first SPARCstation was the SPARCstation 1 (also known as the Sun 4/60), introduced in 1989. The series was very popular and introduced the Sun-4c architecture, a variant of the Sun-4 architecture previously introduced in the Sun 4/260. Thanks in part to the delay in the development of more modern processors from Motorola, the SPARCstation series was very successful across the entire industry. The last model bearing the SPARCstation name was the SPARCstation 4. The workstation series was replaced by the Sun Ultra series in 1995; the next Sun server generation was the Sun Enterprise line introduced in 1996. Models Desktop and deskside SPARCstations and SPARCservers of the same model number were essentially ident ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monochrome Monitor
A monochrome monitor is a type of computer monitor in which computer text and images are displayed in varying tones of only one color, as opposed to a color monitor that can display text and images in multiple colors. They were very common in the early days of computing, from the 1960s through the 1980s, before color monitors became widely commercially available. They are still widely used in applications such as computerized cash register systems, owing to the age of many registers. Green screen was the common name for a monochrome monitor using a green "P1" phosphor screen; the term is often misused to refer to any block mode display terminal, regardless of color, e.g., IBM 3279, 3290. Abundant in the early-to-mid-1980s, they succeeded Teletype terminals and preceded color CRTs and later LCDs as the predominant visual output device for computers. CRT Design The most common technology for monochrome monitors was the CRT, although, e.g., plasma displays, were also use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TurboSPARC
The TurboSPARC is a microprocessor that implements the SPARC V8 instruction set architecture (ISA) developed by Fujitsu Microelectronics, Inc. (FMI), the United States subsidiary of the Japanese multinational information technology equipment and services company Fujitsu Limited located in San Jose, California. It was a low-end microprocessor primarily developed as an upgrade for the Sun Microsystems microSPARC-II-based SPARCstation 5 workstation. It was introduced on 30 September 1996, with a 170 MHz version priced at US$499 in quantities of 1,000. Fujitsu Microelectronics, Inc., ''Fujitsu Microelectronics' New TurboSPARC Processor Sets New Performance Level For Low-End, Mid-Range Workstations''. The TurboSPARC was mostly succeeded in the low-end SPARC market by the UltraSPARC IIi in late 1997, but remained available. Users of the TurboSPARC were Force Computers, Fujitsu, RDI Computer, Opus Systems, Tadpole Technologies, Tatung Science and Technology and Themis Computers. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SPARCstation 5
SPARCstation 5 (code-named ''Aurora'') is a workstation made by Sun Microsystems as part of their SPARCstation family. Released on March 29, 1994, the SPARCstation sold for between 3,995 at the low end to US$11,395 at the high end (equivalent to $– in ). Sun positioned the SPARCstation 5 as a low-cost model in the SPARCstation range, set to replace the earlier SPARCclassic from 1992. It is based on the sun4m architecture, and is enclosed in a pizza-box chassis. Sun also offered a SPARCserver 5 without a framebuffer. A simplified version of the SPARCstation 5 was released in February 1995 as the SPARCstation 4. Sun also marketed these same machines under the "Netra" brand, without framebuffers or keyboards and preconfigured with all the requisite software to be used as web servers. It was the fastest-selling Unix workstation up to that point, with 100,000 units selling within nine months of its introduction. Over 400,000 SPARCstation 5s were sold across its entire lifespan. S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SPARCstation 20
The SPARCstation 20 (code-named ''Kodiak'') is a workstation made by Sun Microsystems. The SPARCstation 20 was released on March 29, 1994, alongside the lower-end SPARCstation 5. The SPARCstation 20 shipped with dual SuperSPARC or hyperSPARC CPUs, supporting up to four such CPUs all Symmetric multiprocessing, running in parallel. It sold for between 12,195 at the low end to US$29,995 at the high end (equivalent to $– in ). Sun superseded the SPARCstation line in November 1995 with the Sun Ultra, Ultra series, which featured UltraSPARC processors. Specifications CPU support The SPARCstation 20 has dual 50 MHz MBus (SPARC), MBus ports that allow it to use faster CPUs than the SPARCstation 10. With two dual-CPU modules and updated firmware, the SPARCstation 20 supports a maximum of four CPUs. The fastest CPU produced for the SPARCstation 20 is the 200 MHz Ross Technology, Ross hyperSPARC. The Programmable read-only memory, PROM in the SPARCstation 20 determines CPU co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HyperSPARC
The hyperSPARC, code-named "Pinnacle", is a microprocessor that implements the SPARC Version 8 instruction set architecture (ISA) developed by Ross Technology for Cypress Semiconductor. The hyperSPARC was introduced in 1993, and competed with the Sun Microsystems SuperSPARC. Raju Vegesna was the microarchitect. The hyperSPARC was Sun Microsystem's primary competitor in the mid-1990s. When Fujitsu acquired Ross from Cypress, the hyperSPARC was considered to be more important by its new owner than the SPARC64 developed by HAL Computer Systems, also a Fujitsu subsidiary, a view which was shared with analysts. Description The hyperSPARC was a two-way superscalar microprocessor. It had four execution units: an integer unit, a floating-point unit, a load/store unit and a branch unit. The hyperSPARC has an on-die 8 KB instruction cache, from which two instructions were fetched per cycle and decoded. The decoder could not decode new instructions if the previously decoded instructio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ross Technology
Ross Technology, Inc. was a semiconductor design and manufacturing company, specializing in SPARC microprocessors. It was founded in Austin, Texas in August 1988 by Dr. Roger D. Ross, a leading computer scientist who headed Motorola's Advanced Microprocessor Division and directed the developments of Motorola's MC68030 and RISC-based 88000 microprocessor families. Dr. Ross was accompanied by Carl Dobbs, Janet Sooch, Steve Goldstein and Travor Smith, who were from Motorola's High-end Microprocessor Division, and were involved in the development of the 88000 microprocessor. He was later joined by Am29000 engineer Raju Vegesna from AMD, who was originally hired by Dr. Ross at Motorola. Cypress Semiconductor provided initial funding. Original board members included Dr. Ross and well-known figures as Dr. T. J. Rodgers of Cypress Semiconductor, John Doerr of Kleiner Perkins Venture Capital, and L. J. Sevin of Sevin Rosen Venture Capital, who also served as board chairman. Ross eve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SPARCstation 2
The SPARCstation 2 (Sun 4/75, code-named ''Calvin'') is a SPARC-based workstation computer sold by Sun Microsystems as part of their SPARCstation family. Sun introduced it on November 5, 1990, for between 14,995 at the low end to US$49,995 at the high end (equivalent to $– in ). Based on the sun4c architecture, the SPARCstation 2 features a 40-MHz SPARC processor. Like its predecessor the SPARCstation 1+, it is housed in a pizza-box case. The SPARCstation 2 was a smash success, Sun selling over 540,000 units by mid-1992. Sales Sun released the SPARCstation 2 on November 5, 1990, to very high demand, and by the end of January 1991, the company had sold 9,000 units. It was the best-selling workstation of 1991, a year which saw the total amount of workstation shipments backslide somewhat compared to 1990. By June 1992, by which point Sun had introduced its successor the SPARCstation 10, Sun had sold at least 540,000 units of the SPARCstation 2. The SPARCstation 2 accounted for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SPARCstation 1
The SPARCstation 1 (Sun 4/60, code-named ''Campus'') is the first of the SPARCstation series of SPARC-based workstations sold by Sun Microsystems. The design originated in 1987 by a Sun spin-off company, UniSun, which was soon re-acquired. The SPARCstation 1 has a distinctive slim enclosure (a square 3-inch-high "pizza box") and was first announced in April 1989; the first units shipped in July that year. Based on an LSI Logic RISC CPU running at 20 MHz, with a Weitek 3170 (or 3172) FPU coprocessor, it was the fourth Sun computer (after the 4/260, 4/110 and 4/280) to use the SPARC architecture and the first of the sun4c architecture. The motherboard has three SBus slots, built-in AUI Ethernet, 8 kHz audio, and a 5 MB/s SCSI-1 bus. The basic display runs at in 256 colours, and monitors shipped with the computer were 16 to 19 inch greyscale or colour. Sun released the SPARCstation 1+, an upgrade to the SPARCstation 1 which increased the clock speed of the CPU to 25 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Processing Unit
A central processing unit (CPU), also called a central processor, main processor, or just processor, is the primary Processor (computing), processor in a given computer. Its electronic circuitry executes Instruction (computing), instructions of a computer program, such as arithmetic, logic, controlling, and input/output (I/O) operations. This role contrasts with that of external components, such as main memory and I/O circuitry, and specialized coprocessors such as graphics processing units (GPUs). The form, CPU design, design, and implementation of CPUs have changed over time, but their fundamental operation remains almost unchanged. Principal components of a CPU include the arithmetic–logic unit (ALU) that performs arithmetic operation, arithmetic and Bitwise operation, logic operations, processor registers that supply operands to the ALU and store the results of ALU operations, and a control unit that orchestrates the #Fetch, fetching (from memory), #Decode, decoding and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MBus (SPARC)
MBus is a computer bus designed and implemented by Sun Microsystems for communication between high speed computer system components, such as the central processing unit, motherboard and main memory. SBus is used in the same machines to connect add-on cards to the motherboard. MBus was first used in Sun's first multiprocessor SPARC-based system, the SPARCserver 600MP series (launched in 1991), and later found use in the SPARCstation 10 and SPARCstation 20 workstations. The bus permits the integration of several microprocessors on a single motherboard, in a multiprocessing configuration with up to eight CPUs packaged in detachable MBus modules. In practice, the number of processors per MBus is limited to four. Single processor systems were also sold that use the MBus protocol internally, but with the CPUs permanently attached to the motherboard to lower manufacturing costs. MBus specifies a 64-bit datapath, which uses 36-bit physical addressing, giving an address space o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multiprocessing
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. There are many variations on this basic theme, and the definition of multiprocessing can vary with context, mostly as a function of how CPUs are defined ( multiple cores on one die, multiple dies in one package, multiple packages in one system unit, etc.). A multiprocessor is a computer system having two or more processing units (multiple processors) each sharing main memory and peripherals, in order to simultaneously process programs. A 2009 textbook defined multiprocessor system similarly, but noted that the processors may share "some or all of the system’s memory and I/O facilities"; it also gave tightly coupled system as a synonymous term. At the operating system level, ''multiprocessing'' is sometimes used to refer to the executi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
