2. Crawler or Spider
●The crawler performs the access that is clearly
different from the human user to trace the rink
mentioned in HTML at a stretch.
● The spider download of web page when access.
3. Indexing software
● The software tools used to generate indexes
come in many flavors and varieties. Which
technique is used depends on variables such as
budget, eventual re-usability of the source
material, file sizes and transferral issues, and
individual preferences.
4. Search Engine
The aimed Web page is searched out on the Web
page with an innumerable it is in the Internet and
drinking on the Web page to be providing the
retrieval service.
5. Database
The one which you collected data along the
specific theme and you managed it,
and it was possible for by reuse such as
a search the extraction easily.
