Finish pratical 4 and 5 today as just have to continue from where to stop yesterday so I just fill up all the questions for comparing the search facilities as part 1 is done yesterday. I learn more about how each search facilities work. I have also start work on my report that is to be submited on monday.
I manage to search information on how each work, for example a search engine operates, in the following order:
web crawling, using a program or automated script which browses the world wide web in a methodical, automated manner. Other less frequently used names for web crawlers are ants, automatic indexers, bots, and worms. Next is indexing which is to collects, parses, and stores data to facilitate fast and accurate information retrieval. Finally the last step searching is to search the query you have type in and display all the results.
I have come to a verdict of all 3 serach facilities Search engine is easy to use and you also get a lot of results from a few key words but there are too many sites to filter out the correct site you are looking for. Web directory are limited in results as they are dependent on editor to add sites into the directory. Results can vary between meta search engines based on a large number of variables and the results tend to be less relevant.
Overall, search engine is the best facility because it returns the most results and arranges the most relevant site at the top. It also allows you to find similar pages from site. It is also one of the most used search facility around the world. Around 28,454 million of searches are done on google alone which shows how popular search engines are.
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