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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. 2) Computers count with numbers. A) regular B) binary C) decimal D) digital 3) Of the following, which represents the largest amount of data? A) Terabyte B) Megabyte C) Petabyte D) Kilobyte Answer: C 4) Approximately how much text is stored in a gigabyte? A) 1 page B) 1,000 pages C) 1 book D) 1,000 books 5) A yottabyte represents 1 bytes. A) septillion B) million C) quadrillion D) trillion 1

2 6) Five bits result in possibilities. A) 5 B) 20 C) 26 D) 32 7) Comparing a binary digit to a is an easy-to-understand analogy. A) highway B) light switch C) storage bin D) memory chip 8) The hexadecimal representation for the decimal 10 is: A) 10. B) B. C) 15. D) A. 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 10) A is the smallest unit of information that a computer can work with. A) byte B) bit C) register D) hex 2

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. 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. 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. 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 Reference: Representing Characters: Character Code 15) The most widely used character code is: A) EBCDIC. B) HTML. C) ASCII. D) Unicode. Answer: C Reference: Representing Characters: Character Code 3

4 16) The contains a computer's main hardware components. A) motherboard B) system unit C) CPU D) master case 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 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 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 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. Reference: The CPU: The Microprocessor 4

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. 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. 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 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 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 Reference: Microprocessor Performance 5

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 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 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. 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. 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 Reference: The Chipset and the Input/Output Bus 6

7 31) RAM stands for: A) rapidly accessed memory. B) random access memory. C) reliable associated memory. D) repeated auxiliary memory. Reference: RAM 32) Each memory address is stored in form. A) serial B) compressed C) parallel D) binary 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. 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 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 Reference: Cache Memory 7

8 36) How many peripheral devices can be connected to a single USB port? A) 1 B) 8 C) 64 D) 127 Reference: USB Ports 37) On non-apple systems, the FireWire port is called a port. A) 1439 B) 2008 C) 1995 D) 1394 Reference: 1394 Ports (FireWire) 38) The ExpressCard is also known as the card. A) SCSI B) PCMCIA C) PS/2 D) VGA 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. 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 Reference: USB Ports 8

9 41) numbers consist of only two digits. inary 42) A(n), also known as a PB, is equivalent to a quadrillion bytes. Answer: petabyte 43) -point notation is used to represent exceedingly large or exceedingly small numbers as well as numbers with fractional parts. Answer: Floating 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 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 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 47) The arrangement of internal components within the system unit is called the factor. Answer: form 48) The is the large printed circuit board that holds the computer's important components such as the microprocessor. Answer: motherboard Reference: What's on the Motherboard? 9

10 49) Calculations and comparisons are performed in the ALU, also known as the -logic unit. Answer: arithmetic Reference: Microprocessor Performance 50) A machine cycle includes the instruction cycle and the cycle. Answer: execution Reference: Data Bus Width and Word Size 51) The maximum number of bits processed by the CPU is called its size. Answer: word Reference: Data Bus Width and Word Size 52) Superscalar architecture takes advantage of to perform more than one instruction per clock tick. Answer: pipelining 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 Reference: The Chipset and the Input/Output Bus 54) A computer uses memory when the RAM gets full. Answer: virtual 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 Reference: Cache Memory 56) or L1 cache memory is located in the microprocessor chip. Answer: Primary Reference: Cache Memory 57) The official name for Apple FireWire or Sony i.link ports is an IEEE port. Answer: 1394 Reference: 1394 Ports (FireWire) 10

11 58) Being able to connect and disconnect peripheral devices without having to shut the computer down is called swapping. Answer: hot Reference: USB Ports 59) A(n) is an electronic switch that directs the flow of electrical signals in a computer. Answer: transistor 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 Reference: Additional Ports and Connectors 61) The Core i7 Extreme Edition microprocessor has a clock speed of. Answer: 3.30 GHz Reference: Popular Microprocessors 62) Heat is removed from the CPU by using heat sink or. Answer: fan Reference: Processor Slots and Sockets 63) An integrated circuit contains millions of. Answer: transistors 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 Reference: Microprocessor Performance 65) The maximum number of bits processed by the CPU is called its size. Answer: word Reference: Data Bus Width and Word Size 66) The newest standard for the PC card, mostly used in notebooks, is called the ExpressCard. Reference: Additional Ports and Connectors 11

12 67) Biometric authentication is individualized and cannot be fooled. 68) A byte is the smallest unit of information. 69) Hexadecimal numbers use the numbers 0 to 9 and the letters A to F. 70) Hexadecimal uses base 16 characters. 71) The form factor is a specification for how internal components are mounted in the system unit. 72) The motherboard contains the CPU. Reference: Inside the System Unit 73) A heat sink keeps the system unit cool. Reference: Processor Slots and Sockets 74) Intel is the only producer of PC chips. Reference: The Instruction Set 75) A memory address is stored in binary form. Reference: RAM 12

13 76) PROM requires a special device to write instructions on a blank chip one time only. Reference: ROM 77) EPROM can only be rewritten twice. Reference: ROM 78) Keeping secondary cache as close as possible to the processor improves performance. Reference: Cache Memory 79) The drive activity light tells you when the hard drive is accessing data. Reference: The Front Panel 80) USB stands for Universal Serial Bus. Reference: USB Ports 81) Computer manufacturers are increasing numbers of USB ports because of their convenience and versatility. Reference: USB Ports 82) Additional circuit boards are installed at expansion slots. Reference: Inside the System Unit 83) The system unit houses the computer s peripheral hardware components. 84) If a program is compatible, it is said to be a native application for a given processor design. Reference: The Instruction Set 13

14 85) There are five steps of the machine cycle. Reference: The Machine Cycle 86) The instruction cycle includes decode and execute. Reference: The Machine Cycle 87) DDR2-SDRAM and DDR3-SDRAM need to have a constant power supply to avoid losing their contents. Reference: RAM 88) A machine cycle includes the instruction cycle and the execution cycle. 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. Reference: Microprocessor Performance 90) The bus used for video and graphics displays is known as the AGP or Accelerated Graphics Port. Reference: The Chipset and the Input/Output Bus 14

15 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 Reference: Representing Characters: Character Code 92) Binary 93) EBCDIC Reference: Representing Characters: Character Code 94) Hexadecimal 95) Exabyte Answers: 91) B 92) A 93) D 94) C 95) E 15

16 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 97) Footprint 98) Form factor 99) Cooling fan Reference: Inside the System Unit 100) Execute Reference: Microprocessor Performance Answers: 96) B 97) A 98) C 99) E 100) D 16