Computers and Technology, 20.09.2020 18:01 nyctvinny8290
Which of the following is true about operating systems?
A. Operating systems based on UNIX are known to be unstable.
B. Windows operating systems are considered to be more user-friendly than Mac operating systems.
C. Operating systems are not expected to function if the user makes a mistake.
D. Stable operating systems do not cause a computer to freeze or produce error messages.
Answers: 2
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Is the process of organizing data to reduce redundancy. a. normalization b. primary keying c. specifying relationships d. duplication
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8. create an abstract student class for parker university. the class contains fields for student id number, last name, and annual tuition. include a constructor that requires parameters for the id number and name. include get and set methods for each field; the settuition() method is abstract. create three student subclasses named undergraduatestudent, graduatestudent, and studentatlarge, each with a unique settuition() method. tuition for an undergraduatestudent is $4,000 per semester, tuition for a graduatestudent is $6,000 per semester, and tuition for a studentatlarge is $2,000 per semester. write an application that creates an array of at least six objects to demonstrate how the methods work for objects for each student type. save the files as student.java, undergraduatestudent.java, graduatestudent.java, studentatlarge.java, and studentdemo.java.
Answers: 1
Which of the following is true about operating systems?
A. Operating systems based on UNIX are know...
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