Which operating system was specifically developed for the first IBM PC?

Answer the following statements true (T) or false (F)

1. A RDBMS is a data organizer. 2. A RDBMS is a relational database since it has a relational field relating two or more tables. 3. A query uses conditional expressions to select data. 4. Queries build a new table by selecting all or part of the records and/or fields. 5. A DBMS decreases the overlap of data

If you want a class that implements the Set interface and do not need any methods beyond those in the Set interface, you can use the concrete class:

(a) Vector (b) LinkedList (c) HashSet (d) TreeSet