KwickClips Networks and the Internet · 40 sec · free
What are the three stages of a search engine?
Short answer. Crawling, indexing and ranking.
Does it search the live web?
No. It searches its own index.
Three stages
| Stage | Does |
|---|---|
| Crawling | visits pages |
| Indexing | stores words |
| Ranking | orders results |
Remember
| Crawl, index, rank |
| It searches its index |
Does Google search the whole web live? No. It works in three stages. Crawlers visit pages. Their words are stored in an index. Results are ranked, best first. Crawl, index, rank. It searches its own index.
This clip is from the full lesson: Search Engines and Finding Information Online — 7 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 10 Computer Applications (165), NIOS Senior Secondary Data Entry Operations (336)
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