First and foremost, I would like to ask something. We normally used the term 'www' whenever we wanted to go a site in the internet right? And my question is, do you really know what is actually the meaning of 'www' itself? 'Www' represents the word for World Wide Web. Every countries have their own ISP including the big building such as a prestige hotel or a company will also use their own ISP. It all started from the local ISP ➡️ regional ISP ➡️ world ISP.
What is search engine?
- It is a web tool that allows users to enter keywords and find information on websites contained in its database.
- Search Engines (Google / Yahoo) uses software that collects data from the Web to include in its database.
- Each search engine has its own database. (They save it with the often search that people has typed in).
Four parts of a search engine:
1) Database:
- a storage where all indexed webpages are stored. (The bigger the database, the bigger storage it can keep).
- where the user’s query is matched.
2) Web-Crawlers (Spiders):
- an automated program or bot.
- simpler understanding of 'web-crawlers', you must bear it mind that it act like a spider where it "crawls" all over the Web Page collecting information like keywords, titles, synonyms, access fruquency, relevency. It's like a brilliant spider who can do everything to search as many information as it can.
3) User Interface:
- a user-friendly app/site/page where users may input query and search results are presented.
- a system used to match the user's query to indexed webpages found in database.
- results presented in rank according to relevance.
Specialized search engine:
■ search Engines tailored to search for a specific area.
■ its database only stores Webpages relevant to a specific field.
■ familiar specialized search engines; Google Scholar, Education World, Art cyclopedia, Pipl.com
Meta search engine:
– MetaCrawler
– SavvySearch
– Dogpile
The end of sharing session. Thank you for your time of reading my blog!
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