Architecture of Windows NTThe architecture of Windows NT, a line of operating systems produced and sold by Microsoft, is a layered design that consists of two main components, user mode and kernel mode. It is a preemptive, reentrant multitasking operating system, which has been designed to work with uniprocessor and symmetrical multiprocessor (SMP)-based computers. To process input/output (I/O) requests, it uses packet-driven I/O, which utilizes I/O request packets (IRPs) and asynchronous I/O.
Athlon 64 X2The Athlon 64 X2 is the first native dual-core desktop central processing unit (CPU) designed by Advanced Micro Devices (AMD). It was designed from scratch as native dual-core by using an already multi-CPU enabled Athlon 64, joining it with another functional core on one die, and connecting both via a shared dual-channel memory controller/north bridge and additional control logic. The initial versions are based on the E stepping model of the Athlon 64 and, depending on the model, have either 512 or 1024 KB of L2 cache per core.
Wa StatesThe Wa States was the name formerly given to the Wa Land, the natural and historical region inhabited mainly by the Wa people, an ethnic group speaking an Austroasiatic language. The region is located to the northeast of the Shan States of British Burma, in the area of present-day Shan State of northern Burma (Myanmar) and the western zone of Pu'er Prefecture, Yunnan, China. Practically the whole Wa region is rugged mountainous territory with steep hills and deep valleys. There were no urban areas.
Wa languageWa (Va) is an Austroasiatic language spoken by the Wa people of Myanmar and China. There are three distinct varieties, sometimes considered separate languages; their names in Ethnologue are Parauk, the majority and standard form; Vo (Zhenkang Wa, 40,000 speakers) and Awa (100,000 speakers), though all may be called Wa, Awa, Va, Vo. David Bradley (1994) estimates there are total of 820,000 Wa speakers. Gerard Diffloth refers to the Wa geographic region as the "Wa corridor", which lies between the Salween and Mekong Rivers.
Wa StateWa State is an autonomous self-governing polity in Myanmar (Burma). It is de facto independent from the rest of the country and has its own political system, administrative divisions and army. However, the Wa State government recognises Myanmar's sovereignty over all of its territory, and the Burmese government does not consider Wa State's political institutions to be legitimate. The 2008 Constitution of Myanmar officially recognises the northern part of Wa State as the Wa Self-Administered Division of Shan State.
Wa peopleThe Wa people (Wa: Vāx; ဝလူမျိုး, wa̰ lùmjóʊ; ; ว้า) are a Southeast Asian ethnic group that lives mainly in Northern Myanmar, in the northern part of Shan State and the eastern part of Kachin State, near and along Myanmar's border with China, as well as in China's Yunnan Province. Historically, the Wa have inhabited the Wa States, a territory that they have claimed as their ancestral land since time immemorial. It is a rugged mountainous area located between the Mekong and the Salween River, with the Nam Hka flowing across it.
Surface areaThe surface area (symbol A) of a solid object is a measure of the total area that the surface of the object occupies. The mathematical definition of surface area in the presence of curved surfaces is considerably more involved than the definition of arc length of one-dimensional curves, or of the surface area for polyhedra (i.e., objects with flat polygonal faces), for which the surface area is the sum of the areas of its faces. Smooth surfaces, such as a sphere, are assigned surface area using their representation as parametric surfaces.
AreaArea is the measure of a region's size on a surface. The area of a plane region or plane area refers to the area of a shape or planar lamina, while surface area refers to the area of an open surface or the boundary of a three-dimensional object. Area can be understood as the amount of material with a given thickness that would be necessary to fashion a model of the shape, or the amount of paint necessary to cover the surface with a single coat.
ActinideThe actinide (ˈæktᵻnaɪd) or actinoid (ˈæktᵻnɔɪd) series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium. The actinide series derives its name from the first element in the series, actinium. The informal chemical symbol An is used in general discussions of actinide chemistry to refer to any actinide. The 1985 IUPAC Red Book recommends that actinoid be used rather than actinide, since the suffix -ide normally indicates a negative ion.
