Computers are your future complete 12th edition cathy laberta test bank

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?.

Trang 1

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

3) Of the following, which represents the largest amount of data?

A) Terabyte

B) Megabyte

C) Petabyte

D) Kilobyte

Answer: C

Diff: 2

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

5) A yottabyte represents 1 bytes

A) septillion

B) million

C) quadrillion

D) trillion

Answer: A

Diff: 3

Trang 2

6) Five bits result in possibilities

A) 5

B) 20

C) 26

D) 32

Answer: D

Diff: 3

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

8) The hexadecimal representation for the decimal 10 is:

A) 10

B) B

C) 15

D) A

Answer: D

Diff: 3

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

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

Trang 3

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

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

15) The most widely used character code is:

A) EBCDIC

B) HTML

C) ASCII

D) Unicode

Answer: C

Diff: 2

Trang 4

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

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

Trang 5

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

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

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

Trang 6

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

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

Trang 7

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

Trang 8

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

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

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

Trang 9

41) numbers consist of only two digits

Answer: Binary

Diff: 1

42) A(n) , also known as a PB, is equivalent to a quadrillion bytes

Answer: petabyte

Diff: 1

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

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

46) The amount of room that a system unit needs to fit on the desk is called the Answer: footprint

Diff: 1

47) The arrangement of internal components within the system unit is called the factor

Answer: form

Diff: 2

48) The is the large printed circuit board that holds the computer's important

components such as the microprocessor

Answer: motherboard

Diff: 1

Trang 10

49) Calculations and comparisons are performed in the ALU, also known as the -logic unit

Answer: arithmetic

Diff: 2

50) A machine cycle includes the instruction cycle and the cycle

Answer: execution

Diff: 1

51) The maximum number of bits processed by the CPU is called its size

Answer: word

Diff: 1

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

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

56) or L1 cache memory is located in the microprocessor chip

Answer: Primary

Diff: 1

57) The official name for Apple FireWire or Sony i.Link ports is an IEEE port

Answer: 1394

Trang 11

58) Being able to connect and disconnect peripheral devices without having to shut the computer down is called swapping

Answer: hot

Diff: 2

59) A(n) is an electronic switch that directs the flow of electrical signals in a

computer

Answer: transistor

Diff: 2

60) is older technology, device, or application that is being phased out in favor of advance in new technology

Answer: Legacy technology

Diff: 2

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

64) The step in the machine cycle interprets what action the program is telling the computer to perform

Answer: decode

Diff: 1

65) The maximum number of bits processed by the CPU is called its size

Answer: word

Diff: 1

66) The newest standard for the PC card, mostly used in notebooks, is called the ExpressCard Answer: TRUE

Diff: 2

Trang 12

67) Biometric authentication is individualized and cannot be fooled

Answer: FALSE

Diff: 2

68) A byte is the smallest unit of information

Answer: FALSE

Diff: 2

69) Hexadecimal numbers use the numbers 0 to 9 and the letters A to F

Answer: TRUE

Diff: 2

70) Hexadecimal uses base 16 characters

Answer: TRUE

Diff: 2

71) The form factor is a specification for how internal components are mounted in the system unit

Answer: FALSE

Diff: 2

72) The motherboard contains the CPU

Answer: TRUE

Diff: 1

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

75) A memory address is stored in binary form

Answer: TRUE

Diff: 2

Reference: RAM

Trang 13

76) PROM requires a special device to write instructions on a blank chip one time only

Answer: TRUE

Diff: 2

Reference: ROM

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

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

81) Computer manufacturers are increasing numbers of USB ports because of their convenience and versatility

Answer: TRUE

Diff: 2

82) Additional circuit boards are installed at expansion slots

Answer: TRUE

Diff: 2

83) The system unit houses the computer’s peripheral hardware components

Answer: FALSE

Diff: 2

84) If a program is compatible, it is said to be a native application for a given processor design Answer: TRUE

Diff: 2

Trang 14

85) There are five steps of the machine cycle

Answer: FALSE

Diff: 1

Reference: The Machine Cycle

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

89) The execute step in the machine cycle interprets what action the program is telling the computer to perform

Answer: FALSE

Diff: 1

90) The bus used for video and graphics displays is known as the AGP or Accelerated Graphics Port

Answer: TRUE

Diff: 1

Định dạng
Số trang	16
Dung lượng	148,95 KB