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Sun4d
Sun4d is a computer architecture introduced by Sun Microsystems in 1992. It is a development of the earlier Sun-4 architecture, using the XDBus system bus, SuperSPARC processors, and SBus I/O cards. The XDBus was the result of a collaboration between Sun and Xerox; its name comes from an earlier Xerox project, the Xerox Dragon. These were Sun's largest machines to date, and their first attempt at making a mainframe-class server. Architecture Sun4d computers are true SMP systems; although memory and CPUs are installed per system board, the memory on a given board is not in any way " closer" to the CPUs on that same board. All memory and I/O devices are equally connected to all CPUs. All of these computers use a passive backplane into which system boards are plugged. Each system board provides CPUs, memory, and an I/O bus. As system boards are added, these components are added to the whole in a completely seamless fashion. It is not a cluster, but works as a single large machin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SPARCcenter
The SPARCstation, SPARCserver and SPARCcenter product lines are a series of SPARC-based computer workstations and 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 identical systems, the onl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sun-4
Sun-4 is a series of Unix workstations and servers produced by Sun Microsystems, launched in 1987. The original Sun-4 series were VMEbus-based systems similar to the earlier Sun-3 series, but employing microprocessors based on Sun's own SPARC V7 RISC architecture in place of the 68k family processors of previous Sun models. Sun 4/280 was known as base system that was used for building of first RAID prototype. Models Models are listed in approximately chronological order. : In 1989, Sun dropped the "Sun-4" name for marketing purposes in favor of the SPARCstation and SPARCserver brands for new models, although early SPARCstation/server models were also assigned Sun-4-series model numbers. For example, the SPARCstation 1 was also known as the Sun 4/60. This practice was phased out with the introduction of the SPARCserver 600MP series in 1991. The term ''Sun-4'' continued to be used in an engineering context to identify the basic hardware architecture of all SPARC-based Sun system ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SS1000-ssa
SS1 may refer to: Transportation * SS 1, a British car of the 1930s and predecessor to the Jaguar * China Railways SS1, an electric locomotive model used in China * Moore SS-1, a glider * Reliant Scimitar SS1, a sports car made by Reliant during the 1980s Military and space * USS ''Holland'' (SS-1), the first submarine of the U.S. Navy * SpaceShipOne, a spaceplane that completed the first privately funded crewed space flight * Pindad SS1, an Indonesian assault rifle * SS-1 Scud, the NATO reporting name for a series of Soviet missiles Other uses * SS1 (classification), a Les Autres sport classification * Sky Sports 1 Sky Sports is a group of British subscription sports channels operated by the satellite pay television company Sky Group (a division of Comcast), and is the dominant subscription television sports brand in the United Kingdom and Ireland. It h ..., a British satellite sports channel * ''Space Ship One'' (album), an album by Paul Gilbert {{Letter-NumberComb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rack Unit
A rack unit (abbreviated U or RU) is a unit of measure defined as . It is most frequently used as a measurement of the overall height of 19-inch and 23-inch rack frames, as well as the height of equipment that mounts in these frames, whereby the height of the frame or equipment is expressed as multiples of rack units. For example, a typical full-size rack cage is 42U high, while equipment is typically 1U, 2U, 3U, or 4U high. Definition The rack unit size is based on a standard rack specification as defined in EIA-310. The Eurocard specifies a standard rack unit as the unit of height; it also defines a similar unit, horizontal pitch (HP), used to measure the width of rack-mounted equipment. The standard was adopted worldwide as ''IEC 60297 Mechanical structures for electronic equipment – Dimensions of mechanical structures of the series'', and defines the sizes for rack, subrack (a shelf-like chassis in which cards can be inserted), and the pitch of printed circuit boards/ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SPARCstation 20
The SPARCstation 20 or SS20 (code-named ''Kodiak'') is a discontinued Sun Microsystems workstation introduced in March 1994 based on the SuperSPARC or hyperSPARC CPU. It is one of the last models in the SPARCstation family of Sun "pizza box form factor, pizza box" computers, which was superseded by the Sun Ultra series, UltraSPARC design in 1995. Specifications Release Price Sun rolled out the SPARCstation 20 for . 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 compatibility. Version 2.25 is the last BootPROM release from Sun, and 2.25R from Ross. Memory The SPARCstation 20 has eight 200-pin DSIMM slots, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linux
Linux ( or ) is a family of open-source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically packaged as a Linux distribution, which includes the kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name "GNU/Linux" to emphasize the importance of GNU software, causing some controversy. Popular Linux distributions include Debian, Fedora Linux, and Ubuntu, the latter of which itself consists of many different distributions and modifications, including Lubuntu and Xubuntu. Commercial distributions include Red Hat Enterprise Linux and SUSE Linux Enterprise. Desktop Linux distributions include a windowing system such as X11 or Wayland, and a desktop environment such as GNOME or KDE Plasma. Distributions intended for ser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battlestar Galactica
''Battlestar Galactica'' is an American science fiction media franchise created by Glen A. Larson. The franchise began with the Battlestar Galactica (1978 TV series), original television series in 1978, and was followed by a short-run sequel series (''Galactica 1980''), a line of book adaptations, original novels, comic books, a board game, and video games. A re-imagined version of ''Battlestar Galactica'' aired as a Battlestar Galactica (miniseries), two-part, three-hour miniseries developed by Ronald D. Moore and David Eick in 2003. That miniseries led to a Battlestar Galactica (2004 TV series), weekly television series, which aired until 2009. A prequel series, ''Caprica'', aired in 2010. All ''Battlestar Galactica'' productions share the premise that in a distant part of the universe, a human civilization has extended to a group of planets known as the Twelve Colonies, to which they have migrated from their ancestral homeworld of Kobol. The Twelve Colonies have been engaged ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cylon (1978)
The Cylons are the main antagonists of the human race in the ''Battlestar Galactica'' science fiction franchise, making appearances in the original Battlestar Galactica (1978 TV series), 1978 series, the Galactica 1980, 1980 series, the Battlestar Galactica (2004 TV series), 2004 re-imagining, and the spin-off prequel series ''Caprica (TV series), Caprica''. In the 1978 series, Cylon is also the name of the reptilian race who created the robot Cylons. The nature and origin of the Cylons differ greatly between the two ''Battlestar Galactica'' continuities. Both series feature Cylon Raiders, Cylon Basestars and Cylon Centurions. The prequel series, ''Caprica'', focuses on the creation of the Cylons. Original Cylons In the original 1978 series, Cylons are a fictional race of robots at war with the Twelve Colonies of humanity. The Cylons were created by a reptilian race, also called Cylons, that died out centuries before the series takes place. In the episode "War of the Gods ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cylon (Battlestar Galactica)
The Cylons are the main antagonists of the human race in the '' Battlestar Galactica'' science fiction franchise, making appearances in the original 1978 series, the 1980 series, the 2004 re-imagining, and the spin-off prequel series '' Caprica''. In the 1978 series, Cylon is also the name of the reptilian race who created the robot Cylons. The nature and origin of the Cylons differ greatly between the two ''Battlestar Galactica'' continuities. Both series feature Cylon Raiders, Cylon Basestars and Cylon Centurions. The prequel series, ''Caprica'', focuses on the creation of the Cylons. Original Cylons In the original 1978 series, Cylons are a fictional race of robots at war with the Twelve Colonies of humanity. The Cylons were created by a reptilian race, also called Cylons, that died out centuries before the series takes place. In the episode "War of the Gods", Count Baltar mentions that the reptilian Cylons were ultimately " overcome by their own technology" (partic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power-on Self-test
A power-on self-test (POST) is a process performed by firmware or software routines immediately after a computer or other digital electronic device is powered on. This article mainly deals with POSTs on personal computers, but many other embedded systems such as those in major appliances, avionics, communications, or medical equipment also have self-test routines which are automatically invoked at power-on. The results of the POST may be displayed on a panel that is part of the device, output to an external device, or stored for future retrieval by a diagnostic tool. Since a self-test might detect that the system's usual human-readable display is non-functional, an indicator lamp or a speaker may be provided to show error codes as a sequence of flashes or beeps. In addition to running tests, the POST process may also set the initial state of the device from firmware. In the case of a computer, the POST routines are part of a device's pre-boot sequence; if they complete succes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serial Ports
In computing, a serial port is a serial communication interface through which information transfers in or out sequentially one bit at a time. This is in contrast to a parallel port, which communicates multiple bits simultaneously in parallel. Throughout most of the history of personal computers, data has been transferred through serial ports to devices such as modems, terminals, various peripherals, and directly between computers. While interfaces such as Ethernet, FireWire, and USB also send data as a serial stream, the term ''serial port'' usually denotes hardware compliant with RS-232 or a related standard, such as RS-485 or RS-422. Modern consumer personal computers (PCs) have largely replaced serial ports with higher-speed standards, primarily USB. However, serial ports are still frequently used in applications demanding simple, low-speed interfaces, such as industrial automation systems, scientific instruments, point of sale systems and some industrial and consumer produ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethernet
Ethernet () is a family of wired computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks (WAN). It was commercially introduced in 1980 and first standardized in 1983 as IEEE 802.3. Ethernet has since been refined to support higher bit rates, a greater number of nodes, and longer link distances, but retains much backward compatibility. Over time, Ethernet has largely replaced competing wired LAN technologies such as Token Ring, FDDI and ARCNET. The original 10BASE5 Ethernet uses coaxial cable as a shared medium, while the newer Ethernet variants use twisted pair and fiber optic links in conjunction with switches. Over the course of its history, Ethernet data transfer rates have been increased from the original to the latest , with rates up to under development. The Ethernet standards include several wiring and signaling variants of the OSI physical layer. Systems communicating over Ethernet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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