This document provides an overview of internet search strategies, including the history and definition of key concepts like the internet, web browsers, search engines, directories, blogs, multimedia tools, and more. It also briefly discusses issues around internet politics such as viruses, freedom of speech, pornography, and copyright.
6. Definition of Net The Internet is the publicly accessible worldwide system of interconnected computer networks that transmit data by packet switching using a standardized Internet Protocol (IP). It is made up of thousands of smaller commercial, academic, domestic and government networks. It carries various information and services, such as electronic mail , online chat , and the interlinked web pages and other documents of the World Wide Web .
30. Definition Definition: A search engine is a searchable database of Internet files collected by a computer program (called a wanderer, crawler, robot, worm, spider).
31. search engine Spider: Program that traverses the Web from link to link, identifying and reading pages Index: Database containing a copy of each Web page gathered by the spider Search and retrieval mechanism: Technology that enables users to query the index and that returns results in a schematic order
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40. Boolean Search Add +ABC Minus -ABC Default DEF OR ABC Exact phrase “ABC” Wild card ABC* Synonym ABC~