Search Engines and Online Database

Tuesday
13th June 2017

Search Engines and Online Database is a system where people can find literally anything on th World Wide Web or simply WWW.

1. A web tool that enable user to find any information using keywords
2. Every search engines have their own database

Search Engines have 4 key elements such as

1. Database that store references from webite
2. Web Crawlers or Spiders to compile indexes of webpages
3. User interface
4. IRS or Internal Retrieval System

Within Search Engines they have specialize part of searching that basically focuses more on certain subject such as

1. Google Scholar
2, Education World
3. Art Cyclopedia
4. Pipl.com

Meta search engines is a type of search engines that included searches from various search engines in one place such as

1. Meta Crawler
2. Savvy Search
3. Dogpile

World Wide Web have 3 parts which is

1. Surface web - the website that we usually visited on our daily basis
2. Deep Web - Includes personal and confidential information of users
3. Dark Web - Place where all illegal activities taken place. Only accessible by TOR browser