APCSP: Unit 2 Study Guide

1. What type of input does the I have a Dream app expect?

2. tactile

3. What type of output does the I have a Dream app generate?

4. audible

5. List seven components in the User Interface drawer.

6. Button

7. Image

8. Label

9. Date picker

10. List picker

11. List view

12. notifier

13. List five components found in the Layout drawer.

14. Vertical scroll arrangement

15. Vertical arrangement

16. Table arrangement

17. Horizontal Scroll Arrangement

18. Horizontal arrangement

19. What event handlers could you use with a player component?  What do these components do?

20. Call_player.stop, call_player.start, call_player.pause, and call_player.vibrate.

21. These cause the player to stop, start, pause, and vibrate respectively

22. When you add components to the screen they are set with default values of what?

23. properties

24. What programming style does App Inventor use?

25. Event driven programming

26. What tool is used to test your code without using a real phone or tablet?

27. emulator

28. How do you add components in the Design view?

29. You drag and drop them from the palette on the left and side of the screen

30. Where can you find a conditional block in App inventor?

31. Under the control section

32. What are the parts of a conditional statement?  What do they do?

33. If, then, and else.

34. If:

35. Then:

36. Else:

37. Allows the user to choose between different actions

38. What are some examples of good names for a button?

39. Dogbutton, mlkbutton, etc.

40. What is hardware? Give four examples.

41. The electronic and mechanical components that carry out the instructions of a computer program.

42. Motherboard

43. RAM

44. CPU

45. monitor/screen

46. What is software? Give four examples.

47. The program(s) that control a computer

48. Google docs

49. Chrome

50. Zoom

51. ios

52. What is a CPU?

53. A Central Processing Unit which is the part of the computer's hardware that interprets and runs the computer program.

54. What do you call someone who writes programs?

55. programmer

56. What is the difference between low-level and high-level programming languages?

57. Low level programming languages are understandable to a computer.

58. High level programming languages are understandable to humans.

59. Give an example of an event on your phone.

60. Me clicking on an app

61. How long is a millisecond?

62. 1/1000th of a second

63. Define abstraction.  What are other terms for abstraction? Give an example of a general abstraction.

64. An abstraction is the simplification of a complicated concept or object

65. Modeling, condensing, simplifying

66. The word chair

67. List the following hardware components from the lowest to highest level of abstraction. RAM chip, motherboard, physical circuit, logic gate, integrated circuit.

68. Physical circuit, logic gate, RAM chip, motherboard,

69. What is an AND gate? OR gate?

70. An AND gate is a circuit with two inputs and one output. Its output is only true when both of its inputs are true.

71. An OR gate is a A circuit with two inputs and one output. Its output is true when one or both of its inputs are true.

72. What is behavior?

73. How yoru program responds to various events

74. What is a general purpose computer? Give four examples.

75. A general purpose computer is a computer that can run many different programs

76. Cell phone, school chromebook, ipad, desktop computer

77. What is pseudocode?

78. A mix of english and programming languages that is easy to read and understand

79. What is a computer’s main memory?

80. RAM, stores data that disappears when the computer loses power. Stores instructions read b the CPU

81. Define a program.

82. A sequence of instructions

83. What is machine language?

84. A programing language that can be read by a computer's CPU without translation

85. What is a motherboard?

86. Houses the computer's main electronic components

87. What is a chip?

88. An IC made up of millions of tiny circuits

89. What is a character?

90. A symbol, uses one byte of storage

91. What is data?

92. Distinct information that is formatted in a specific way

93. What is a bit?

94. A binary digit

95. What is intellectual property?

96. Created using original thought

97. What is a network?

98. A group of two or more computer systems linked together

99. What is a disk drive?

100. A randomly addressable and rewritable storage device.

101. What is a data center?

102. Physical and virtual infrastructure used by enterprises to house computer, server, and networking systems and components for the company’s IT needs.

103. What is a data network?

104. A telecommunications network which allows computers to exchange data.

105. What is Moore’s Law?

106. Growth density of integrated circuits.

107. The number of transistors in an integrated circuit will double each year.

108. How is Computer Science more than just “programming”?

109. Programming, designing, problem-solving, creativity

110. Why is it important to use “meaningful” names for your variables and components?

111. When you are coding, you will know what the variable stands for and what the component means.