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Types of Search Engine:
Some of the basic categories of Search engines are :
a. Primary Search Engines: Such search engines use web crawlers or spiders to traverse the web and scan websites for key words, phrases, to generate database of web pages having some indexing or classification. Google and Alta Vista are examples of primary search engines.
b. Web directory: Web directories organize information into categories and subcategories or directories. You can search a web directory for all those entries that contain a particular set of keywords. Directories differ from search engines in the way they organize information. Yahoo is an example of web directory.
c. Meta search engines: Such search engines pass your queries to many search engines and web directories and present summarized results to the users. Some of the examples of meta search engines are - Dogpile, Infind, Metacrawler, Metafind and Metasearch.
Packet Switching: This is one of recent techniques of switching. Packet switching was originally developed for use by ARPA network by the Defence Department of US. According t
The ALU, or the arithmetic and logic unit is the part of the processor that is occupied with executing operations of an arithmetic or logical nature. It works in conjunction by mea
Digital computer: In the digital computer there are basically two types of input, namely Instructions, and Data from the various radio and non-radio sensors, which will be refe
code in c program
Statements in Python classically end with a new line. Python does, though, permit the use of the line continuation character (\) to denote that the line should continue. Illustrati
Telecommunications network: "A telecommunications network, at its simplest, may be regarded as comprising a transmission network, an arrangement of transmission paths and swit
What is types of computer?
history of automata
Computer Processing: Most of the earliest computer memories have been based on physical elements which can exist in just one of the two states (on or off): such an element cor
How Much Insurance? Many financial experts advise that property owners should insure their homes or buildings for at least 80 percent of the amount it would cost to replace the st
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