1)Databases surround us on the web and everyday life. Now that you have a clearer
idea of what database systems do, find two examples of web sites that you believe
are likely to use databases and discuss what kinds of data they might be storing, as
in the example answer.
Ans)The two examples of web sites that uses the databases would be a web site of college library and a web site of any music store (www.coconutgrovemusic.com).They both use data base because the library website uses their site to for all the book records and the music store site will keep the data base of all the music they have.
2)
Department--->(specific professor for the department)Professor--->(each will teach a course)Course--->(classes will be held in different classroom)Classroom


3.)The department to professor relationship would be many to one.There will be more than one professor any department.The professor to course relationship would be many to many,because there will be many professors who will teach a course or just one professorwill teach more than one course. The course to classroom relationship will be many to one,because a course may have more than one classroom.

4)Type of radio station---->Type of music--->Artists of that kind of music--->Songs of the individual artist--->Most popular song played from that Artist

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1) Which movies were released before 1980, ordered by year of release?

The Wrong Man 1956
Psycho 1960
The Bad Sleep Well 1960
High and Low 1963
Dersu Uzala 1974
Jaws 1975

(2) When were each of the Psycho movies released?
1960 & 1998

(3) Which movies have titles that start with the letter R?
Ran(Chaos) & Red

(4) Which directors have last names that start with the letter S?
Steven Soderbergh
Spielberg

(5) Which movies were directed by directors who were born after 1955?
The Children of Heaven,
The Color of Paradise,
Traffic, 
Cinema Paradise,
The Legend of 1900