(Computer Studies) Final Exam-Questions and Answers Graded A+

(Computer Studies) Final Exam-Questions and Answers Graded A+ What is a computer? - ANSWER-A computer is a device that follows instructions for manipulating and storing information. What is a program? - ANSWER-A computer program is a set of instructions that the computer follows to perform a task. What is an algorithm? - ANSWER-An algorithm is a set of well-defined logical steps that must be taken in order to perform a task. What is the only language the computers understand? - ANSWER-Machine language is the only language that computers understand. Why were programming languages invented? - ANSWER-Because computers only understand machine language (which consists of binary numbers), programming languages were invented to make programming easier. Programming languages consist of words, which are easier for people to understand. How do you control the speed at which a world is played? - ANSWER-You use the speed slider control on the World Running...window. What part of the Alice environment displays a view of the world, as seen through the camera? - ANSWER-The World View window. What part of the Alice environment displays a list of objects in the world? - ANSWER-The Object Tree. What is a tile? What purpose of tiles did we discuss in this section? - ANSWER-A tile is simply a small rectangular icon. In this section we discussed the use of tiles to represent objects in the Object Tree. What are properties? - ANSWER-Properties are values that specify an object's characteristics. What is the name of the property that determines whether you can see through an object? - ANSWER-The color property determines an object's color. The opacity property determines whether you can see through an object. What is a method? - ANSWER-A method is a set of programming statements that an object can execute.