Microsoft Corporation is an American multinational computer technology corporation, which rose to dominate the home computer operating system market with MS-DOS in the mid-1980s, followed by the Windows line of operating systems.
Home Page: microsoft.com/

Google Inc. is an American public corporation, earning revenue from advertising related to its Internet search, e-mail, online mapping, office productivity, social networking, and video sharing services as well as selling advertising-free versions of the same technologies.
Home Page: google.com

In computing, Microsoft Excel (full name Microsoft Office Excel) consists of a proprietary spreadsheet-application written and distributed by Microsoft for Microsoft Windows and Mac OS X. It features calculation, graphing tools, pivot tables and, except for Excel 2008 for Mac OS X, a macro programming language called VBA . It is overwhelmingly the dominant spreadsheet application available for these platforms and has been so since version 5 in 1993, and is bundled as part of Microsoft Office.
Home Page: office.microsoft.com/en-us/excel/FX100487621033.aspx

Google search is a Web search engine owned by Google, Inc., and it is the most used search engine on the Web. Google receives several hundred million queries each day through its various services. Google search was originally developed by Larry Page and Sergey Brin in 1997.

A googol is the large number 10, that is, the digit 1 followed by one hundred zeros (in decimal representation). The term was coined in 1938 by Milton Sirotta (1929–1980), nephew of American mathematician Edward Kasner. Kasner popularized the concept in his book Mathematics and the Imagination (1940). Googol is of the same order of magnitude as the factorial of 70 (70! being approximately 1.198 googol, or 10 to the power 100.0784), and its only prime factors are 2 and 5 (100 of each). In binary it would take up 333 bits. A googol has no particular significance in mathematics, but is useful when comparing with other very large quantities such as the number of subatomic particles in the visible universe or the number of possible chess games. Edward Kasner created it to illustrate the difference between an unimaginably large number and infinity, and in this role it is sometimes used in teaching mathematics. A googol can be written in conventional notation as follows: Its official English number name is ten duotrigintillion on the short scale, ten thousand sexdecillion on the long scale, or ten sexdecilliard on the Peletier long scale. A googolplex is the number one followed by one