WWW Search Engines & Class Bulletin Board

Tom Kelliher, CS 102

Jan. 28, 1998

Quiz material:

  1. What we've discussed in class.

  2. The three readings.

  3. Clarification on ``A Brief History of the Internet.'' You are responsible for only the following sections: Introduction, Origins of the Internet, Transition to Widespread Infrastructure, and History of the Future.

From last time:

  1. Skills learned: Downloading a document from the Web, Using MS Word, e-mail attachments.

  2. Select-then-do model in MS Word.

  3. Bookmarks/Favorites.


  1. Search engines.

  2. Class bulletin board.


Search Engines

  1. What is a search engine?

  2. Finding the ``Searching the Web'' entry at Yahoo. Bookmark it.

  3. The types of search engines:
    1. Directory search tool. Indexed by subject matter. Example: LookSmart. Like an expanding table of contents.

    2. Search engine. Accesses databases by using keywords. Results in ``hits.'' Example: AltaVista. Like the index in a book.

    3. Combined directory/search engine. Allows you to switch between the two methods. The deeper in the directory you go, the narrower the field of search for the search engine. Example: Yahoo.

    4. Multi-Engine. A so-called meta-search engine that uses a number of other search engines to perform searches. Example: MAMMA.

  4. How do they know what's out there? Spiders and Robots.

  5. How do I use one?

    Exercise: Working in groups of two, visit
    http://www.ultranet.com/~egrlib/tutor.htm#Search g --- Search Exercise and try the four different searches. Take summary notes of your successes/failures for the next exercise.

Class Bulletin Board

Thomas P. Kelliher
Tue Jan 27 18:55:00 EST 1998
Tom Kelliher