Exposure Java Exercises s3

AP® Computer Science (A) Exercises 01.01-07 Date: Name: Period:

1. According to the author, what is one of the most important elements of learning in a classroom?

2. What is the “exposure equation”?

3. Computer Science is essentially ______.

4. In what 3 areas are computers superior to human beings?

5. List 2 human errors that can cause a computer to give erroneous information.

6. Morse code is based on a series of ______and ______signals.

7. Using dots and dashes, write your first name in Morse code.

8. The secret of Morse code is the fact that electricity can be ______, and it can be ______.

9. In Computer Science, ____ means on and ____ means off.

10. The number system that we use is called the ______number system or ______.

11. What does every digit in a base-10 number represent?

12. Is it possible to count in other bases besides base-10?

13. The number system used by computers is the ______number system or ______.

14. What does every digit in a base-2 number represent?

Exposure Computer Science 2016 for AP®CS (A) Exercises 01.01-07 Page 1 07-06-16 15. What does ASCII stand for?

16. What is the ASCII code for capital letter D?

17. Which ASCII codes are used for the standard set of characters?

18. Which ASCII codes are used for the extended set of characters?

19. How many bytes does ASCII use to store one character?

20. Refer to the previous question. How many different characters are possible with ASCII?

21. How many bytes does Unicode use to store one character?

22. Refer to the previous question. How many different characters are possible with Unicode?

23. Which coding system does Java use?

24. What is a bit?

25. How many bits are in a byte?

26. How many bits are in a nibble?

27. Early computers used vacuum tubes. How much information did one vacuum tube store?

28. What eventually replaced the vacuum tubes?

29. What do computers use today to store information?

30. What is the main board in a computer, with all the primary computer components, called?

31. What are computer chips made out of?

32. When a metal is a semiconductor, that means it allows you to precisely control the flow of what?

33. What kind of chip stores permanent information for the computer?

34. What does ROM stand for?

35. What kind of chip stores temporary information for the computer?

36. What does RAM stand for?

37. Exactly how many bytes are in a kilobyte?

38. Which stores more information, gigabytes or terabytes?

39. What does CPU stand for?

40. The CPU is essentially the ______of the computer.

41. Iron Oxide is the technical term for something we use to store information on an old floppy disk. What is the more common term?

42. What secondary storage device is coded with areas that reflect and absorb laser light?

43. What type of device measures in a continuous fashion?

44. What type of information allows you to make a precise copy of the original?

Exposure Computer Science 2016 for AP®CS (A) Exercises 01.01-07 Page 3 07-06-16