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

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
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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

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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

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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

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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
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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

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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

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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

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

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

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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
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

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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
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

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Match the following terms to their descriptions:
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

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Match the following terms to their meanings:
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

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