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Wirth's law is a computing adage which states that software is getting slower more rapidly than hardware becomes faster. The law is named after Niklaus Wirth, who discussed it in 1995. Wirth attributed the saying to Martin Reiser, who, in the preface to his book on the Oberon System, wrote: "The hope is that the progress in hardware will cure all software ills. However, a critical observer may observe that software manages to outgrow hardware in size and sluggishness."〔 〕 Other observers had noted this for some time before, indeed the trend was becoming obvious as early as 1987.〔 〕 The law was restated in 2009 and attributed to Larry Page, founder of Google. It has been referred to as Page's law.〔(【引用サイトリンク】title= Can "Page's Law" Be Broken? )〕 The first use of that name is attributed to Sergey Brin at the Google I/O Conference 2009. == Gates' law == Gates' law is a variant on Wirth's law, borrowing its name from Bill Gates,〔 the founder of Microsoft. It is a humorous and ironic observation that the speed of commercial software generally slows by 50% every 18 months, thereby negating all the benefits of Moore's law. This could occur for a variety of reasons: "featuritis", "code cruft", developer laziness, or a management turnover whose design philosophy does not coincide with the previous manager.〔Orion, Egan (March 21, 2003). ("WinTel trips on Linux?" ), ''The Inquirer''.〕 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「Wirth's law」の詳細全文を読む スポンサード リンク
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