Computers Are Your Future, 12E (Laberta) s1

Computers Are Your Future, 12e (LaBerta) Chapter 2 Inside the System Unit

1) A byte: A) is the equivalent of eight binary digits. B) represents one digit in the decimal numbering system. C) is the smallest unit of information that a computer can process. D) can be compared to the state of one light switch being either on or off. Answer: A Diff: 2 Reference: Representing Data as Bits and Bytes

2) Computers count with ______numbers. A) regular B) binary C) decimal D) digital Answer: B Diff: 2 Reference: Representing Data as Bits and Bytes

3) Of the following, which represents the largest amount of data? A) Terabyte B) Megabyte C) Petabyte D) Kilobyte Answer: C Diff: 2 Reference: Representing Data as Bits and Bytes

4) Approximately how much text is stored in a gigabyte? A) 1 page B) 1,000 pages C) 1 book D) 1,000 books Answer: D Diff: 3 Reference: Representing Data as Bits and Bytes

5) A yottabyte represents 1 ______bytes. A) septillion B) million C) quadrillion D) trillion Answer: A Diff: 3 Reference: Representing Data as Bits and Bytes

1Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 6) Five bits result in ______possibilities. A) 5 B) 20 C) 26 D) 32 Answer: D Diff: 3 Reference: Representing Data as Bits and Bytes

7) Comparing a binary digit to a ______is an easy-to-understand analogy. A) highway B) light switch C) storage bin D) memory chip Answer: B Diff: 3 Reference: Representing Data as Bits and Bytes

8) The hexadecimal representation for the decimal 10 is: A) 10. B) B. C) 15. D) A. Answer: D Diff: 3 Reference: Representing Data as Bits and Bytes

9) Hexadecimal numbers are represented using numbers 0 to 9 and letters ______. A) A to F B) A to Z C) A to D D) None of the above Answer: A Diff: 3 Reference: Representing Data as Bits and Bytes

10) A ______is the smallest unit of information that a computer can work with. A) byte B) bit C) register D) hex Answer: B Diff: 2 Reference: Representing Data as Bits and Bytes

2Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 11) Floating-point notation: A) has no advantage if used with numbers containing fractional points. B) uses no fixed number of digits before or after the decimal point. C) requires newer computers to have a special chip called a math coprocessor. D) allows the computer to work with very large, but not very small, numbers. Answer: B Diff: 2 Reference: Representing Very Large and Very Small Numbers

12) All of the following are examples of character codes EXCEPT: A) SCSI. B) ASCII. C) EDCDIC. D) Unicode. Answer: A Diff: 2 Reference: Representing Characters: Character Code

13) An algorithm used as a bridge between binary code and keyboard characters is known as: A) cache. B) hot swapping. C) data dependency. D) character code. Answer: D Diff: 2 Reference: Representing Characters: Character Code

14) ______is becoming more popular than previously used character codes due to its ability to represent most, if not all, of the world's languages. A) Extended ASCII B) ASCII C) Unicode D) EDCDIC Answer: C Diff: 2 Reference: Representing Characters: Character Code

15) The most widely used character code is: A) EBCDIC. B) HTML. C) ASCII. D) Unicode. Answer: C Diff: 2 Reference: Representing Characters: Character Code

3Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 16) The ______contains a computer's main hardware components. A) motherboard B) system unit C) CPU D) master case Answer: B Diff: 1 Reference: Introducing the System Unit

17) Which of the following components would NOT be found inside the system unit? A) Motherboard B) USB port C) Power supply D) Cooling fan Answer: B Diff: 1 Reference: Inside the System Unit

18) In the strictest sense of the term, the ______contains the CPU. A) system unit B) unit frame C) motherboard D) computing platform Answer: C Diff: 1 Reference: Inside the System Unit

19) Which of the following would NOT be found on the motherboard? A) Microprocessor B) System clock C) Drive bays D) Input/output buses Answer: C Diff: 2 Reference: What's on the Motherboard?

20) The central processing unit (CPU): A) plays a minimal role in processing data. B) is different from a microprocessor. C) is a fairly simple device. D) is an integrated chip capable of processing signals. Answer: D Diff: 1 Reference: The CPU: The Microprocessor

4Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 21) A processor's instruction set: A) is unique to the type of processor. B) is the same for different types of processors. C) will run programs that were created for an incompatible processor. D) has nothing to do with the ability of the computer to run a program. Answer: A Diff: 2 Reference: The Instruction Set

22) The four-step process of fetch, decode, execute, and store is called a(n): A) arithmetic operation. B) machine cycle. C) instruction cycle. D) logical operation. Answer: B Diff: 1 Reference: Microprocessor Performance

23) Which of the following subcomponents of the CPU takes instructions from memory and decodes and executes the instructions? A) Arithmetic-logic unit B) Microprocessor C) Data bus D) Control unit Answer: D Diff: 2 Reference: Microprocessor Performance

24) Which of the following is NOT one of the steps in the machine cycle? A) Pipeline B) Decode C) Execute D) Store Answer: A Diff: 2 Reference: Microprocessor Performance

25) The greater the number of ______on a microprocessor, and proximity to each other, the faster the processing speed. A) transistors B) disks C) buses D) registers Answer: A Diff: 2 Reference: Microprocessor Performance

5Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 26) Which of the following operating systems was the first to use the 64-bit technology? A) Mac OS X B) Linux C) MS-DOS D) Windows XP Answer: B Diff: 3 Reference: Data Bus Width and Word Size

27) A CPU's word size is important because it determines which ______the CPU can use. A) application software B) input devices C) disk storage D) operating system Answer: D Diff: 3 Reference: Data Bus Width and Word Size

28) The number of operations per clock tick affects: A) microprocessor performance. B) monitor resolution. C) disk drive capacity. D) the bus size. Answer: A Diff: 1 Reference: Operations per Cycle

29) A technique that uses more than one processor to execute a program is called: A) parallel processing. B) serial processing. C) co-processing. D) megaprocessing. Answer: A Diff: 1 Reference: Parallel Processing

30) Which of the following input/output buses is used by today's PCs? A) PCI B) CPU C) L2 D) AGP Answer: A Diff: 2 Reference: The Chipset and the Input/Output Bus

6Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 31) RAM stands for: A) rapidly accessed memory. B) random access memory. C) reliable associated memory. D) repeated auxiliary memory. Answer: B Diff: 1 Reference: RAM

32) Each memory address is stored in ______form. A) serial B) compressed C) parallel D) binary Answer: D Diff: 1 Reference: RAM

33) Although introduced in 1995, the USB didn't become widely used until the release of the: A) Blackberry. B) iMac. C) iPod. D) iTunes. Answer: B Diff: 3 Reference: USB Ports

34) A memory ______is the amount of RAM a program uses when it is operational. A) stash B) footprint C) cache D) utility Answer: B Diff: 1 Reference: RAM

35) Which of the following types of memory has L1, L2, and L3 levels of storage? A) RAM B) ROM C) cache D) flash Answer: C Diff: 1 Reference: Cache Memory

7Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 36) How many peripheral devices can be connected to a single USB port? A) 1 B) 8 C) 64 D) 127 Answer: D Diff: 3 Reference: USB Ports

37) On non-Apple systems, the FireWire port is called a ______port. A) 1439 B) 2008 C) 1995 D) 1394 Answer: D Diff: 2 Reference: 1394 Ports (FireWire)

38) The ExpressCard is also known as the ______card. A) SCSI B) PCMCIA C) PS/2 D) VGA Answer: B Diff: 1 Reference: Additional Ports and Connectors

39) The ExpressCard provides enhancements in all of the following areas EXCEPT: A) wireless communication. B) additional memory. C) multimedia. D) cost. Answer: D Diff: 1 Reference: Additional Ports and Connectors

40) If your computer doesn't have enough USB ports, it is possible to obtain a USB ______. A) hub B) router C) PBX D) multiplexer Answer: A Diff: 3 Reference: USB Ports

42) A(n) ______, also known as a PB, is equivalent to a quadrillion bytes. Answer: petabyte Diff: 1 Reference: Representing Data as Bits and Bytes

43) ______-point notation is used to represent exceedingly large or exceedingly small numbers as well as numbers with fractional parts. Answer: Floating Diff: 2 Reference: Representing Very Large and Very Small Numbers

44) A(n) ______is the smallest piece of information with which a computer can work. Answer: bit Diff: 1 Reference: Representing Data as Bits and Bytes

45) The American ______Code for Information Interchange (ASCII) character code is most widely used on minicomputers, personal computers, and computers that make information available on the Internet. Answer: Standard Diff: 2 Reference: Representing Characters: Character Code

46) The amount of room that a system unit needs to fit on the desk is called the ______. Answer: footprint Diff: 1 Reference: Introducing the System Unit

47) The arrangement of internal components within the system unit is called the ______factor. Answer: form Diff: 2 Reference: Introducing the System Unit

48) The ______is the large printed circuit board that holds the computer's important components such as the microprocessor. Answer: motherboard Diff: 1 Reference: What's on the Motherboard?

9Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 49) Calculations and comparisons are performed in the ALU, also known as the ______-logic unit. Answer: arithmetic Diff: 2 Reference: Microprocessor Performance

50) A machine cycle includes the instruction cycle and the ______cycle. Answer: execution Diff: 1 Reference: Data Bus Width and Word Size

51) The maximum number of bits processed by the CPU is called its ______size. Answer: word Diff: 1 Reference: Data Bus Width and Word Size

52) Superscalar architecture takes advantage of ______to perform more than one instruction per clock tick. Answer: pipelining Diff: 2 Reference: Operations per Cycle

53) A collection of chips that are designed to move data between the microprocessor and the rest of the computer is called the ______. Answer: chipset Diff: 2 Reference: The Chipset and the Input/Output Bus

54) A computer uses ______memory when the RAM gets full. Answer: virtual Diff: 3 Reference: RAM

55) Memory that the processor can use to store frequently accessed program instructions and data to improve the overall speed of the computer is called ______memory. Answer: cache Diff: 1 Reference: Cache Memory

56) ______or L1 cache memory is located in the microprocessor chip. Answer: Primary Diff: 1 Reference: Cache Memory

57) The official name for Apple FireWire or Sony i.Link ports is an IEEE ______port. Answer: 1394 Diff: 2 Reference: 1394 Ports (FireWire)

10Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 58) Being able to connect and disconnect peripheral devices without having to shut the computer down is called ______swapping. Answer: hot Diff: 2 Reference: USB Ports

59) A(n) ______is an electronic switch that directs the flow of electrical signals in a computer. Answer: transistor Diff: 2 Reference: What's on the Motherboard?

60) ______is older technology, device, or application that is being phased out in favor of advance in new technology. Answer: Legacy technology Diff: 2 Reference: Additional Ports and Connectors

61) The Core i7 Extreme Edition microprocessor has a clock speed of ______. Answer: 3.30 GHz Diff: 2 Reference: Popular Microprocessors

62) Heat is removed from the CPU by using heat sink or ______. Answer: fan Diff: 1 Reference: Processor Slots and Sockets

63) An integrated circuit contains millions of ______. Answer: transistors Diff: 2 Reference: What's on the Motherboard?

64) The ______step in the machine cycle interprets what action the program is telling the computer to perform. Answer: decode Diff: 1 Reference: Microprocessor Performance

65) The maximum number of bits processed by the CPU is called its ______size. Answer: word Diff: 1 Reference: Data Bus Width and Word Size

66) The newest standard for the PC card, mostly used in notebooks, is called the ExpressCard. Answer: TRUE Diff: 2 Reference: Additional Ports and Connectors

68) A byte is the smallest unit of information. Answer: FALSE Diff: 2 Reference: Representing Data as Bits and Bytes

69) Hexadecimal numbers use the numbers 0 to 9 and the letters A to F. Answer: TRUE Diff: 2 Reference: Representing Data as Bits and Bytes

70) Hexadecimal uses base 16 characters. Answer: TRUE Diff: 2 Reference: Representing Data as Bits and Bytes

71) The form factor is a specification for how internal components are mounted in the system unit. Answer: FALSE Diff: 2 Reference: Introducing the System Unit

72) The motherboard contains the CPU. Answer: TRUE Diff: 1 Reference: Inside the System Unit

73) A heat sink keeps the system unit cool. Answer: TRUE Diff: 2 Reference: Processor Slots and Sockets

74) Intel is the only producer of PC chips. Answer: FALSE Diff: 2 Reference: The Instruction Set

75) A memory address is stored in binary form. Answer: TRUE Diff: 2 Reference: RAM

77) EPROM can only be rewritten twice. Answer: FALSE Diff: 2 Reference: ROM

78) Keeping secondary cache as close as possible to the processor improves performance. Answer: TRUE Diff: 2 Reference: Cache Memory

79) The drive activity light tells you when the hard drive is accessing data. Answer: TRUE Diff: 2 Reference: The Front Panel

80) USB stands for Universal Serial Bus. Answer: TRUE Diff: 1 Reference: USB Ports

81) Computer manufacturers are increasing numbers of USB ports because of their convenience and versatility. Answer: TRUE Diff: 2 Reference: USB Ports

82) Additional circuit boards are installed at expansion slots. Answer: TRUE Diff: 2 Reference: Inside the System Unit

83) The system unit houses the computer’s peripheral hardware components. Answer: FALSE Diff: 2 Reference: Introducing the System Unit

84) If a program is compatible, it is said to be a native application for a given processor design. Answer: TRUE Diff: 2 Reference: The Instruction Set

86) The instruction cycle includes decode and execute. Answer: FALSE Diff: 2 Reference: The Machine Cycle

87) DDR2-SDRAM and DDR3-SDRAM need to have a constant power supply to avoid losing their contents. Answer: TRUE Diff: 2 Reference: RAM

88) A machine cycle includes the instruction cycle and the execution cycle. Answer: TRUE Diff: 1 Reference: Data Bus Width and Word Size

89) The execute step in the machine cycle interprets what action the program is telling the computer to perform. Answer: FALSE Diff: 1 Reference: Microprocessor Performance

90) The bus used for video and graphics displays is known as the AGP or Accelerated Graphics Port. Answer: TRUE Diff: 1 Reference: The Chipset and the Input/Output Bus

A) The number system used by computers B) Most widely used character code C) Uses base 16 characters to represent binary numbers D) A character coding method created by IBM and used on its mainframes E) One quintillion bytes

91) ASCII Diff: 3 Reference: Representing Characters: Character Code

92) Binary Diff: 3 Reference: Representing Data as Bits and Bytes

93) EBCDIC Diff: 3 Reference: Representing Characters: Character Code

94) Hexadecimal Diff: 3 Reference: Representing Data as Bits and Bytes

95) Exabyte Diff: 3 Reference: Representing Data as Bits and Bytes

Answers: 91) B 92) A 93) D 94) C 95) E

A) The amount of space taken up by the case on the desk B) Any size of case that contains the computer's main hardware C) Specification for mounting internal components such as the motherboard D) Performs a specific action such as adding two numbers E) Prevents computer components from being damaged by heat

96) System unit Diff: 2 Reference: Introducing the System Unit

97) Footprint Diff: 2 Reference: Introducing the System Unit

98) Form factor Diff: 2 Reference: Introducing the System Unit

99) Cooling fan Diff: 2 Reference: Inside the System Unit

100) Execute Diff: 1 Reference: Microprocessor Performance

Answers: 96) B 97) A 98) C 99) E 100) D