Chapter 2 Quiz

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Question #1

Terascale computing is the ability of a computer to process one ____ floating point operations per second (teraflops).

A trillion

B quadrillion

C million

D billion

Question #2

Jack has a computer at home that he uses to access the Internet, store and edit personal photos, and create and edit documents. Recently, he has come to realize that in order to keep the computer performing at its best, he needs to carry out regular system maintenance on the computer.
Jack can use the ____ program to locate and delete temporary files, such as installation files, Web browsing history, and files in the Recycle Bin.

A Windows Registry

B Temporary Files

C Windows Disk Cleanup

D Disk Defragmenter

Question #3

Like graphics data, ______ such as a song or the sound of someone speaking must be in digital form in order to be stored on a storage medium or processed by a computer.

A pixel data

B audio programs

C audio data

D giga data

Question #4

ASCII is the coding system traditionally used with personal computers.

A FALSE

B TRUE

Question #5

The binary numbering system uses only two symbols—the digits 0 and 1—to represent all possible numbers.

A TRUE

B FALSE

Question #6

____ are small components typically made out of aluminum with fins that help to dissipate heat.

A Fans

B Heat sinks

C ACs

D Heat buses

Question #7

____ have begun to replace ROM for storing system information, such as a computer’s BIOS.

A Adapter cards

B Motherboards

C Flash memory chips

D Microprocessors

Question #8

One reason a computer might become inefficient is that when programs are uninstalled, pieces of the program are sometimes left behind or references to these programs are left in operating system files such as the ____.

A Security Accounts Manager (SAM)

B kernel

C Windows defender

D Windows registry

Question #9

The ____ is the section of a CPU core that performs arithmetic involving integers and logical operations.

A ALU

B decode unit

C control unit

D FPU

Question #10

Today’s CPUs contain hundreds of millions of transistors, and the number doubles approximately every 18 months, a phenomenon known as Moliere’s Law.

A FALSE

B TRUE

Question #11

The ____ allows 127 different devices to connect to a computer via a single USB port on the computer’s system unit.

A PCI Express Bus

B HyperTransport bus

C AGP (Accelerated Graphics Port) bus

D USB standard

Question #12

The term ____ refers to chip-based storage.

A memory

B storage media

C hard drive

D zip drive

Question #13

The ____ tries to predict what data and instructions will be needed and retrieves them ahead of time in order to help avoid delays in processing.

A arithmetic/logic unit

B prefetch unit

C control unit

D floating point unit

Question #14

Each pixel in a monochrome graphic can be only one of two possible colors (such as black or white).

A TRUE

B FALSE

Question #15

The backside bus (BSB) has been one of the most common types of expansion buses in past years.

A TRUE

B FALSE

Question #16

The control unit takes the instructions fetched by the prefetch unit and translates them into a form that can be understood by the control unit, ALU, and FPU.

A TRUE

B FALSE

Question #17

The decode unit coordinates and controls the operations and activities taking place within a CPU core.

A FALSE

B TRUE

Question #18

A circuit board is a thin board containing ____ and other electronic components.

A pentiums

B pixels

C computer bits

D computer chips

Question #19

Jack has a computer at home that he uses to access the Internet, store and edit personal photos, and create and edit documents. Recently, he has come to realize that in order to keep the computer performing at its best, he needs to carry out regular system maintenance on the computer.
Jack can speed up his computer by scanning it for viruses and ____.

A icons

B mailware

C spyware

D utilities

Question #20

A ____ is approximately 1,000 bytes.

A kilobyte (KB)

B gigabyte (GB)

C megabyte (MB)

D terabyte (TB)

Question #21

ROM (read-only memory), also called main memory or system memory, is used to store the essential parts of the operating system while the computer is running.

A FALSE

B TRUE

Question #22

Because of its large size, audio data is usually encrypted to reduce its file size when it is transmitted over the Internet or stored on a smartphone or another device.

A FALSE

B TRUE

Question #23

The main circuit board inside the system unit is called the megaboard.

A FALSE

B TRUE

Question #24

The key element of the microprocessor is the ____—a device made of semiconductor material that controls the flow of electrons inside a chip.

A transistor

B processor

C chipbus

D S-card

Question #25

Video data—such as home movies, feature films, video clips, and television shows—is displayed using a collection of ____.

A vectors

B slides

C pixels

D frames

Question #26

The ____ takes instructions from the prefetch unit and translates them into a form that the control unit can understand.

A register

B decode unit

C internal cache

D ALU

Question #27

Each place value in a binary number represents ____ raised to the appropriate power.

A 0

B 2

C 1

D 10

Question #28

Pipelining increases the number of machine cycles completed per second.

A FALSE

B TRUE

Question #29

Jess is a musician who has just bought a new computer. Now she need to figure out how to connect this computer to the devices that were connected to her old computer.
Jess has pictures from her old computer saved on a flash memory card. To transfer these to her new computer, she will insert the card into a(n) ____.

A IrDA port

B SCSI port

C modem

D slot

Question #30

To convert analog sound to digital sound, several thousand samples—digital representations of the sound at a particular moment—are taken every second.

A FALSE

B TRUE

Question #31

Most recent software programs, including the latest versions of Microsoft Windows, OS X, and Microsoft Office, use ASCII.

A FALSE

B TRUE

Question #32

The numbering system we commonly use is called the decimal numbering system because it uses ____ symbols to represent all possible numbers.

A 16

B 10

C 5

D 2

Question #33

Early computers required programs to be written in machine language.

A TRUE

B FALSE

Question #34

With pipelining, a new instruction begins executing as soon as the previous one reaches the next stage of the pipeline

A FALSE

B TRUE

Question #35

The ____ orders data and instructions from cache or RAM based on the current task.

A decode unit

B control unit

C ALU

D prefetch unit

Question #36

Unlike ASCII and EBCDIC, Unicode is a universal international coding standard designed to represent text-based data written in any ancient or modern language, including those with different alphabets.

A TRUE

B FALSE

Question #37

Magnetic RAM (MRAM) uses ____ rather than an electrical charge to store data.

A three layers

B carbon nanotubes

C magnetic polarization

D memristors

Question #38

The buses that connect peripheral (typically input and output) devices to the motherboard are often called expansion buses.

A TRUE

B FALSE

Question #39

Most computers today support the ____ standard, which means the computer automatically configures new devices as soon as they are installed and the computer is powered up.

A Plug and Play

B Serial port

C Parallel port

D Match

Question #40

The system unit is the main case of a computer or mobile device.

A FALSE

B TRUE

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