This document discusses different types of search engines. It describes crawlers like Google and Yahoo that use spiders to search web pages and add them to their databases. Directories like Open Directory are human-powered and pages must be approved before inclusion. Hybrid search engines combine crawler and directory results. Meta search engines like Daniel search multiple other search engines and combine results.

1. Submitted by:
Aditya sen
MBA 1 C
PRESTIGE
INSTITUTE OF MANAGEMENT GWALIOR
Submitted to :
Prof. R. k. paliwal

2. SEARCH ENGINES
• A web search engine is a software
system that is designed to search for
information on the World Wide Web.
• It uses the keywords to search for
documents that relate to these key
words and then puts the result in order
of relevance to the topic that was
searched for.

3. DIFFERENT SEARCH ENGINES

4. TYPES OF SEARCH ENGINE
Crawlers
These types of search engines use a "spider" or a "crawler" to search the
Internet. The crawler digs through individual web pages, pulls out keywords
and then adds the pages to the search engine's
database. Google and Yahoo are examples of crawler search engines.
The advantage of crawlers are:
They contain a huge amount of pages.
Ease of use.
Familiarity. Most people who search the Internet are familiar with Google.
The disadvantages to crawlers:
Sometimes, it's just too much information.

5. Directories
Directories are human powered search engines. A website is submitted to
the directory and must be approved for inclusion by editorial staff. Open
directory project and the Internet Public Library are examples of
directories.
Advantages:
Each page is reviewed for relevance and content before being
included. This means no more surprise porn sites.
Less results sometimes means finding what you need quicker.
Disadvantages:
Unfamiliar design and format.
Delay in creation of a website and it's inclusion in the director

6. Hybrids
Hybrids are a mix of crawlers and directories. Sometimes, you have a choice when
you search whether to search the Web or a directory. Other times, you may receive
both human powered results and crawler results for the same search. In this case,
the human results are usually listed first.
Meta
Meta search engines are ones that search several other search engines at once and
combines the results into one list. While you get more results with meta search
engines, the relevancy and quality of the results may sometimes suffer. Daniel
and Clustery are examples of meta search engines.

9. SEO stands for_______
A. Search engine operation
B. Search entry optimization
C. Search engine optimization
D. None of these
C. Search engine optimization

10. Search engine are used to ________.
A. Search Videos
B. Search Documents
C. Software system that is designed to search for
information on the World Wide Web
D. All of these

11. search engine optimization is the process of ________ of a website
or a web page in a search engine’s search result.
A. Generating cached files
B. Affecting the visibility
C. Getting meta tags
D. None of these

12. SEO is all about optimizing a website
for search engines.
A. False
B. True

13. SEO is to improve the volume and ________ to a website from
search engines.
A. Look and feel
B. None of these
C. Quality of traffic
D.advertisement