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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: ADiff: 2Reference: Representing Data as Bits and Bytes

2) Computers count with ________ numbers.A) regularB) binaryC) decimalD) digitalAnswer: BDiff: 2Reference: Representing Data as Bits and Bytes

3) Of the following, which represents the largest amount of data?A) TerabyteB) MegabyteC) PetabyteD) KilobyteAnswer: CDiff: 2Reference: Representing Data as Bits and Bytes

4) Approximately how much text is stored in a gigabyte?A) 1 pageB) 1,000 pagesC) 1 bookD) 1,000 booksAnswer: DDiff: 3Reference: Representing Data as Bits and Bytes

5) A yottabyte represents 1 ________ bytes.A) septillionB) millionC) quadrillionD) trillionAnswer: ADiff: 3Reference: Representing Data as Bits and Bytes

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6) Five bits result in ________ possibilities.A) 5B) 20C) 26D) 32Answer: DDiff: 3Reference: Representing Data as Bits and Bytes

7) Comparing a binary digit to a ________ is an easy-to-understand analogy.A) highwayB) light switchC) storage binD) memory chipAnswer: BDiff: 3Reference: Representing Data as Bits and Bytes

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

9) Hexadecimal numbers are represented using numbers 0 to 9 and letters ________.A) A to FB) A to ZC) A to DD) None of the aboveAnswer: ADiff: 3Reference: Representing Data as Bits and Bytes

10) A ________ is the smallest unit of information that a computer can work with.A) byteB) bitC) registerD) hexAnswer: BDiff: 2Reference: Representing Data as Bits and Bytes



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: BDiff: 2Reference: 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: ADiff: 2Reference: 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: DDiff: 2Reference: 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 ASCIIB) ASCIIC) UnicodeD) EDCDICAnswer: CDiff: 2Reference: Representing Characters: Character Code

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



16) The ________ contains a computer's main hardware components.A) motherboardB) system unitC) CPUD) master caseAnswer: BDiff: 1Reference: Introducing the System Unit

17) Which of the following components would NOT be found inside the system unit?A) MotherboardB) USB portC) Power supplyD) Cooling fanAnswer: BDiff: 1Reference: Inside the System Unit

18) In the strictest sense of the term, the ________ contains the CPU.A) system unitB) unit frameC) motherboardD) computing platformAnswer: CDiff: 1Reference: Inside the System Unit

19) Which of the following would NOT be found on the motherboard?A) MicroprocessorB) System clockC) Drive baysD) Input/output busesAnswer: CDiff: 2Reference: 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: DDiff: 1Reference: The CPU: The Microprocessor



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: ADiff: 2Reference: 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: BDiff: 1Reference: Microprocessor Performance

23) Which of the following subcomponents of the CPU takes instructions from memory and decodes and executes the instructions?A) Arithmetic-logic unitB) MicroprocessorC) Data busD) Control unitAnswer: DDiff: 2Reference: Microprocessor Performance

24) Which of the following is NOT one of the steps in the machine cycle?A) PipelineB) DecodeC) ExecuteD) StoreAnswer: ADiff: 2Reference: Microprocessor Performance

25) The greater the number of ________ on a microprocessor, and proximity to each other, the faster the processing speed.A) transistorsB) disksC) busesD) registersAnswer: ADiff: 2Reference: Microprocessor Performance



26) Which of the following operating systems was the first to use the 64-bit technology?A) Mac OS XB) LinuxC) MS-DOSD) Windows XPAnswer: BDiff: 3Reference: Data Bus Width and Word Size

27) A CPU's word size is important because it determines which ________ the CPU can use.A) application softwareB) input devicesC) disk storageD) operating systemAnswer: DDiff: 3Reference: 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: ADiff: 1Reference: 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: ADiff: 1Reference: Parallel Processing

30) Which of the following input/output buses is used by today's PCs?A) PCIB) CPUC) L2D) AGPAnswer: ADiff: 2Reference: The Chipset and the Input/Output Bus



31) RAM stands for:A) rapidly accessed memory.B) random access memory.C) reliable associated memory.D) repeated auxiliary memory.Answer: BDiff: 1Reference: RAM

32) Each memory address is stored in ________ form.A) serialB) compressedC) parallelD) binaryAnswer: DDiff: 1Reference: 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: BDiff: 3Reference: USB Ports

34) A memory ________ is the amount of RAM a program uses when it is operational.A) stashB) footprintC) cacheD) utilityAnswer: BDiff: 1Reference: RAM

35) Which of the following types of memory has L1, L2, and L3 levels of storage?A) RAMB) ROMC) cacheD) flashAnswer: CDiff: 1Reference: Cache Memory



36) How many peripheral devices can be connected to a single USB port?A) 1B) 8C) 64D) 127Answer: DDiff: 3Reference: USB Ports

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

38) The ExpressCard is also known as the ________ card.A) SCSIB) PCMCIAC) PS/2D) VGAAnswer: BDiff: 1Reference: 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: DDiff: 1Reference: Additional Ports and Connectors

40) If your computer doesn't have enough USB ports, it is possible to obtain a USB ________.A) hubB) routerC) PBXD) multiplexerAnswer: ADiff: 3Reference: USB Ports



41) ________ numbers consist of only two digits.Answer: BinaryDiff: 1Reference: Representing Data as Bits and Bytes

42) A(n) ________, also known as a PB, is equivalent to a quadrillion bytes.Answer: petabyteDiff: 1Reference: 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: FloatingDiff: 2Reference: Representing Very Large and Very Small Numbers

44) A(n) ________ is the smallest piece of information with which a computer can work.Answer: bitDiff: 1Reference: 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: StandardDiff: 2Reference: Representing Characters: Character Code

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

47) The arrangement of internal components within the system unit is called the ________ factor.Answer: formDiff: 2Reference: Introducing the System Unit

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



49) Calculations and comparisons are performed in the ALU, also known as the ________-logic unit.Answer: arithmeticDiff: 2Reference: Microprocessor Performance

50) A machine cycle includes the instruction cycle and the ________ cycle.Answer: executionDiff: 1Reference: Data Bus Width and Word Size

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

52) Superscalar architecture takes advantage of ________ to perform more than one instruction per clock tick.Answer: pipeliningDiff: 2Reference: 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: chipsetDiff: 2Reference: The Chipset and the Input/Output Bus

54) A computer uses ________ memory when the RAM gets full.Answer: virtualDiff: 3Reference: 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: cacheDiff: 1Reference: Cache Memory

56) ________ or L1 cache memory is located in the microprocessor chip.Answer: PrimaryDiff: 1Reference: Cache Memory

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



58) Being able to connect and disconnect peripheral devices without having to shut the computer down is called ________ swapping.Answer: hotDiff: 2Reference: USB Ports

59) A(n) ________ is an electronic switch that directs the flow of electrical signals in a computer.Answer: transistorDiff: 2Reference: 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 technologyDiff: 2Reference: Additional Ports and Connectors

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

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

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

64) The ________ step in the machine cycle interprets what action the program is telling the computer to perform.Answer: decodeDiff: 1Reference: Microprocessor Performance

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

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



67) Biometric authentication is individualized and cannot be fooled.Answer: FALSEDiff: 2Reference: Introducing the System Unit

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

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

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

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

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

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

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

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



76) PROM requires a special device to write instructions on a blank chip one time only.Answer: TRUEDiff: 2Reference: ROM

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

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

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

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

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

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

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

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



85) There are five steps of the machine cycle.Answer: FALSEDiff: 1Reference: The Machine Cycle

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

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

88) A machine cycle includes the instruction cycle and the execution cycle.Answer: TRUEDiff: 1Reference: 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: FALSEDiff: 1Reference: Microprocessor Performance

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



Match the following terms to their descriptions:

A) The number system used by computersB) Most widely used character codeC) Uses base 16 characters to represent binary numbersD) A character coding method created by IBM and used on its mainframesE) One quintillion bytes

91) ASCIIDiff: 3Reference: Representing Characters: Character Code

92) BinaryDiff: 3Reference: Representing Data as Bits and Bytes

93)EBCDICDiff: 3Reference: Representing Characters: Character Code

94) HexadecimalDiff: 3Reference: Representing Data as Bits and Bytes

95) ExabyteDiff: 3Reference: Representing Data as Bits and Bytes

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



Match the following terms to their meanings:

A) The amount of space taken up by the case on the deskB) Any size of case that contains the computer's main hardwareC) Specification for mounting internal components such as the motherboardD)Performs a specific action such as adding two numbersE)Prevents computer components from being damaged by heat

96) System unitDiff: 2Reference: Introducing the System Unit

97)FootprintDiff: 2Reference: Introducing the System Unit

98)Form factorDiff: 2Reference: Introducing the System Unit

99)Cooling fanDiff: 2Reference: Inside the System Unit

100) ExecuteDiff: 1Reference: Microprocessor Performance

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


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