How Yahoo and Google search engines work?

Describe how the www.Yahoo.com search engine works and give one advantage and one disadvantage in this method of searching?

Yahoo search engine works as a hierarchical subject index, this means it allows people to search from the general to the specific materials. When a keyword is entered into the Yahoo search engine, the engine then searches its index and finds all the websites that has the keyword or keywords that have been entered by the user. However, Yahoo search engine does not search the entire web.

Yahoo search engine have a large number of advantages and disadvantages. A good advantage is that the search engine is easy-to-navigate subject catalogue. A disadvantage is that only a small portion of the web has actually been catalogued by Yahoo.

Describe how the www.Google.com search engine works and give one advantage and one disadvantage in this method of searching?

Google search engine builds a list of words and notes where they were found. It then builds an index and encodes the data to save space and finally stores data for people to access by entering keywords into the search engine. Google search engine is the world’s most popular search engine as it has the biggest index system.

Google has many advantages one of them is; if a keyword was typed incorrectly with a spelling mistake in the Google search engine, the search engine will then give an option to correct the keyword, by showing you the right spelling for the word.

A disadvantage of Google search engine is that, it is too plain. Unlike Yahoo, for example, Google search engine does not contain many colours in its pages, the main colours used in Google are blue and black. Making the website more colourful can attract more users.

In your view explain which search engine you prefer to use when searching the web and justify why you have this preference?

Personally, I prefer the Google search engine because it simply has the best searching options such as you are able to filter what you are searching to protect children from unsuitable websites. There are simply too many advantages and too many options the Google search engine provides. It also has a very large, if not the largest index system. This means you are highly likely to find the right websites for your needs. From previous experience, when using Yahoo search engine to find the information I wanted, I wasn’t able to find it easily, however, when searching for the same information on Google I found the information I wanted. I cant remember a senario where google failed to give me the information I required therefore, it has always been my prefered search engine.

Source links

http://searchenginewatch.com/showPage.html?page=2168031
http://www.monash.com/spidap3.html