Final Exam part 2
by BrandonHelfer on Nov.22, 2009, under
The internet was originally a U.S.military project called ARPANET in 1969. The internet and the World Wide Web(WWW) are 2 different things. The internet is the interlock of computer which gives the ability for information to be transmitted. Search engines send out things called "spiders" to go through every web page and find the top/most wanted searches and brings the information to the search engines. Many searches have different amounts of web pages though, google has the most with 8.1 billion web pages, and Ask Jeeves is one of the lowest with 2.5 billion. There aren't many similar web pages between these different search engines. Some websites are not available from search engines like JSTOR or LexisNexis. Many techniques that can be used such as Phrase searching, Truncation, Boolean operators, and Search limits. Phrase searching allows you to find two or more words together using quotation marks (" "). Truncation searches by using characters as blank spaces(*,$). Boolean operators allows you to mix search terms using things such as AND, OR, NOT. Search limits help to narrow down searches to specific topics by using things such as google's advanced search. Phrase searching is useful when looking for specific words/phrase to help narrow down a search. it's better to search for sources instead of just information. It's better to try and narrow a topic down by using these different search options, because it helps from making the sources become to broad or generalized.
0 comments