This document provides an overview of Google and Yahoo, comparing their histories, products, and business models. It notes that while Yahoo started as a directory/portal, Google emerged as a dominant search engine using its PageRank algorithm. The document also discusses the companies' founders and key executives. It analyzes differences in their approaches to search technology and advertising, noting Google's shift to using ads alongside organic search results.
4. BC, AD
• BC : Before Christ
• AD : Anno Domini
– Abu incarnatione Domini 主の体現「神
であるキリストが、肉体を持って現れたこと」年
– イエスの誕生年は、紀元前4~7年頃。
– Anno Domini 「主の年」
– quot;in the year of our Lord.quot;
21. Google
• Dr. Eric E. Schmidt (CEO)
– Novell, Sun Microsystems
• Larry Page
• Sergey Brin
22. Google
• Googol
– A googol is the large number 10 ,100
that is, the digit 1 followed by one
hundred zeros.
• Googolplex
– A googolplex is 1 followed by a
googol of zeroes, or ten raised to the
power of a googol:
10100
– googolplex = 10 = 10
googol
23. Google
• Backrub
– Back Link, Reverse Hyper Link
• PageRank
– Algorithm
– Ranking System of Hyper Link
• As a Search Engine
– Back Link List
32. Truth of Difference
• Yahoo!
– 人間がやっている全ての仕事が機械で置き換
え可能ではない。
• Google
– すべての処理をコンピュータが行うのが理想。
– Like a HAL 9000, Skynet or Matrix.
• 人間が介在するのが有効か否か?本質的
違いは、そこに在る。人類補完計画。
33. HAL 9000
• HAL: Heuristically programmed
ALgorithmic computer
47. Gates going, but slowly
• Gates stepping down from full-
time Microsoft role
– Gates announced on Thursday that
he will gradually relinquish his current
role, ceding the title of chief software
architect immediately, while
remaining a full-time employee for
the next two years. In July 2008, he
will remain as a part-time employee
and chairman.