Ultra 80
The Sun Microsystems Ultra 80 is a computer workstation that shipped from November 1999 to 2002. Its enclosure is a fairly large ( high, wide and deep) and heavy () tower design. At launch, it shipped with Solaris 2.5.1, and was available in a variety of different configurations, with one (model 1450), two (model 2450) or four (model 4450) 64-bit UltraSPARC II CPUs and up to 4 GB of RAM. When released, the Ultra 80 was Sun's highest performance workstation. The Ultra 80 is similar to the lower-cost Sun Ultra 60, but is somewhat larger and supports more CPUs and memory. Although it was designed as a workstation rather than a server, it may be rack mounted using an optional kit. The Enterprise 420R is a server product based on the Ultra 80 motherboard in a specialized rack-mountable chassis, with custom power supplies and other parts more appropriate for server applications. The last order date for the Ultra 80 was July 2002 and the last model stopped shipping in October 2002. T ...
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Sun Ultra 80
The Sun is the star at the center of the Solar System. It is a nearly perfect ball of hot plasma, heated to incandescence by nuclear fusion reactions in its core. The Sun radiates this energy mainly as light, ultraviolet, and infrared radiation, and is the most important source of energy for life on Earth. The Sun's radius is about , or 109 times that of Earth. Its mass is about 330,000 times that of Earth, comprising about 99.86% of the total mass of the Solar System. Roughly three-quarters of the Sun's mass consists of hydrogen (~73%); the rest is mostly helium (~25%), with much smaller quantities of heavier elements, including oxygen, carbon, neon, and iron. The Sun is a G-type main-sequence star (G2V). As such, it is informally, and not completely accurately, referred to as a yellow dwarf (its light is actually white). It formed approximately 4.6 billionAll numbers in this article are short scale. One billion is 109, or 1,000,000,000. years ago from the gravitat ...
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