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Computer performance is characterized by the amount of useful work accomplished by a computer system or computer network compared to the time and resources used. Depending on the context, high computer performance may involve one or more of the following: * Short response time for a given piece of work * High throughput (rate of processing work) * Low utilization of computing resource(s) * High availability of the computing system or application * Fast (or highly compact) data compression and decompression * High bandwidth * Short data transmission time ==Technical and non-technical definitions== The performance of any computer system can be evaluated in measurable, technical terms, using one or more of the metrics listed above. This way the performance can be * Compared relative to other systems or the same system before/after changes * In absolute terms, e.g. for fulfilling a contractual obligation Whilst the above definition relates to a scientific, technical approach, the following definition given by Arnold Allen would be useful for a non-technical audience: ''The word ''performance'' in computer performance means the same thing that performance means in other contexts, that is, it means "How well is the computer doing the work it is supposed to do?"''〔Computer Performance Analysis with Mathematica by Arnold O. Allen, Academic Press, 1994. ''$1.1 Introduction, pg 1.''〕 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「computer performance」の詳細全文を読む スポンサード リンク
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