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A technology demonstration or Demonstrator model is a prototype, rough example or an otherwise incomplete version of a conceivable product or future system, put together as proof of concept with the primary purpose of showcasing the possible applications, feasibility, performance and method of an idea for a new technology. They can be used as demonstrations to the investors, partners, journalists or even to potential customers in order to convince them of the viability of the chosen approach, or to test them on ordinary users. Computer technology demonstrations should not be confused with demoscene-based demos, which, although often demonstrating new software techniques, are regarded as a stand-alone form of computer art. ==Computers and gaming== Technology demonstrations are often used in the computer industry, emerging as an important tool in response to short development cycles, in both software and hardware development. * Computer game developers use "tech demos" to rouse and maintain interest to titles still in development (because game engines are usually ready before the art is finished) and to ensure functionality by early testing. Short segments using finished game engines may be presented as game demos. * Graphics cards manufacturers use tech demos to showcase the performance of their cards even before there are any games that can deliver that performance or before the product is ready to be used outside of the development labs. In November 2002, NVIDIA started the practice of featuring realistic female characters in graphics card technology demos, by releasing Dawn for its GeForce FX card. The demo featured a scantily clad forest fairy with semi-realistic short hair and beautiful wings. Later NVIDIA followed with similar, new demos and ATI Technologies joined the race. * Being by nature much less complex than complete games (that have to include dynamic physics modelling, audio engines, etc.), technology demos for graphics can deliver substantially better image quality, making the general look of games lag several years behind video card technology demos. For example, the PlayStation 2 demos ''Namco Girl'' (a lifelike female character from ''Ridge Racer'' winking flirtatiously at viewers) and ''old man'' used all the processing power to produce a high-quality single character model, in a static environment. Xbox trailers also showed Raven, a buff woman and her robot, showing off martial art moves. Computer technology demos should not be confused with demoscene-based demos, which, although often demonstrating new software techniques, are regarded as a stand-alone form of computer art. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「technology demonstration」の詳細全文を読む スポンサード リンク
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