Deck 3: E-Business

Question 1

The output devices of a computer system can include video display units,scanners,and printers.

Answer 1

False

Question 2

Web-enabled personal digital assistants use touch screens,pen-based handwriting recognition,or keyboards,so mobile workers can send and receive e-mail,access the Web,and exchange information with their desktop PCs or Web servers.

Answer 2

True

Question 3

Network servers are some of the less powerful microcomputers; they are used to coordinate telecommunications and resource sharing in small LANs and in Internet and intranet websites.

Answer 3

False

Question 4

Midrange computers can act as powerful workstations for computer-aided design and other computation and graphics-intensive applications.

Question 5

Midrange computers are often used as network servers in order to help manage large Internet websites,corporate intranets and extranets,and client/server networks.

Question 6

The first electronic digital computer was completed in the 1960s.

Question 7

All computers are systems of input,processing,output,storage,and distribution components.

Question 8

Experts predict the merging or disappearance of several computer categories.For example,many midrange and mainframe systems have been made obsolete by the power and versatility of client/server networks composed of microcomputers and servers.

Question 9

The computing power of microcomputers currently exceeds that of the mainframe computer of previous generations,at a fraction of the cost.

Question 10

Today's corporate buyers seek PCs with network interface cards and/or wireless capabilities.

Question 11

The central processing unit (CPU)is the main processing component of a computer system.

Question 12

Mainframe computers are sometimes used as front-end servers in order to assist midrange computers in performing telecommunications processing and network management.

Question 13

Minicomputers are popular for process monitoring and instrumentation because these require very demanding processing versatility.

Question 14

The function of an input device is to interpret computer program instructions and to transmit directions to the other components of the computer system.

Question 15

Personal computers,network servers,and technical workstations are terms used to highlight major uses of particular types of computers.

Question 16

The term "megacomputer" describes a category of extremely powerful computer systems specifically designed for scientific,engineering,and business applications requiring extremely high speeds for massive numeric computations.

Question 17

Some microcomputers are powerful enough to support applications with heavy mathematical computing and graphics display demands,such as computer-aided design (CAD)or investment analysis.

Question 18

The top criteria for corporate PC ownership are operating system ready,connectivity,solid performance,and global compatibility.

Question 19

Network servers are the most important category of computer systems for both businesspeople and individual consumers.

Question 20

Midrange systems first became popular as minicomputers for scientific research,instrumentation,engineering analysis,and process monitoring and control.

Question 21

When discussing the concept of a computer system,peripherals is the generic name given to all input,output,and secondary storage devices that are part of a computer system.

Question 22

Smart cards,a form of input technology that contains an embedded microprocessor chip,are becoming popular in the United States for use in debit and credit cards.

Question 23

OCR technology is used to read codes on merchandise tags,product labels,credit card receipts,and other documents.

Question 24

Speech recognition systems typically require training the computer to recognize your voice and its unique sound patterns in order to achieve a high degree of accuracy.

Question 25

"Peripherals" is the generic name given to all input,output,and secondary storage devices that are part of a computer system and are part of the CPU.

Question 26

Pen-based computing technologies are being used in many hand-held computers and personal digital assistants.

Question 27

Speaker independent voice recognition systems allow a computer to understand a few words from a voice it has never heard before.

Question 28

The control unit of the CPU interprets instructions and directs processing.

Question 29

The dark,magnetic stripe on the back of credit cards can hold about 200 gigabytes of information.

Question 30

A trackball is a type of pointing device that converts drawings and other graphic images into digital data in order to enter it into a computer system.

Question 31

A pointing stick is the most popular pointing device used today.

Question 32

The clock speed of a microprocessor today is commonly expressed in teraflops; earlier microcomputer speeds were reported in gigahertz.

Question 33

Moore's Law refers to the exponential growth in the number of transistors per integrated circuit,which quadruples computer power every six months.

Question 34

Peripherals depend on direct connections or telecommunications links to the central processing unit of a computer system.

Question 35

Advances in video monitor technology,such as active matrix and dual scan capabilities,have improved the color,but not the clarity,of LCD displays.

Question 36

Offline devices are separate from,but can be electronically connected to and controlled by,a CPU.

Question 37

Digital cameras and digital video cameras enable users to shoot,store,and download still photos or full-motion video and audio onto their PCs.

Question 38

Video displays and printed documents have been,and still are,the most common forms of output from computer systems.

Question 39

Some touch screens emit a grid of infrared beams or sound waves that is broken when the screen is touched.

Question 40

Optical scanning enables the direct entry of data from source documents into a computer system.

Question 41

RFID chips may be attached to objects,but cannot be injected into them because it interferes with radio signal transmission.

Question 42

Active RFID chips are self-powered and must be close the reader to transmit their signal.

Question 43

One of the major trends in secondary storage has been toward massive capacities using magnetic and optical media.

Question 44

Magnetic disks are common forms of secondary storage because they provide fast access and high storage capacity at a reasonable cost.

Question 45

Printing information on paper is the most common form of information output.

Question 46

DVD+RW+R with CD-RW provides an all-in-one drive for burning DVD-RW or DVD-R disks,burning CDs,and reading DVDs and CDs.

Question 47

Most CD-ROM disks can hold more than 600 megabytes of information.

Question 48

Magnetic tape devices are frequently called direct access storage devices (DASDs),while magnetic disks are known as sequential access devices.

Question 49

High speed storage media cost less per byte and provide higher capacities than lower-speed storage media.

Question 50

RAID disk units provide fault-tolerant storage capacity because data can be recovered from backup copies stored on other disks should one disk fail.

Question 51

The Transportation Security Administration (TSA)has considered embedding RFID tags in airline passengers to keep track of them.

Question 52

It is predicted that in the future we will be able to back up our biological memories.

Question 53

Data are processed and stored in a computer system through the presence or absence or electronic or magnetic signals to the computer.This is called a "bi-state" representation of data,because the computer and the media can exhibit only two states or conditions.

Question 54

The terms direct access and random access describe the same concept.

Question 55

The primary storage (main memory)of a computer consists of microelectronic semiconductor memory chips.

Question 56

ROM chips are widely used as a primary storage medium because they can be erased and overwritten.

Question 57

The main advantage of CD-R (compact disk-recordable)disks is that they enable recorded data to be erased many times.

Question 58

One of the biggest advantages of semiconductor memory is its volatility.

Question 59

A byte consists of ten bits and represents one character of data in most computer coding schemes.

Question 60

Magnetic tapes are no longer used by businesses today because the cost of storage on tape is very expensive compared to other types of storage media.

Question 61

In the 1950s,_______________ were invented and quickly replaced the thousands of vacuum tubes used in electronic computers.

A)microchips
B)resistors
C)transistors
D)miniaturized circuits

Question 62

The mechanical loom was invented by _______________.

A)Blaise Pascal
B)Joseph Jacquard
C)Herman Hollerith
D)Keith Glennan

Question 63

Which of the following is a common application for a midrange computer?

A)Industrial process-control
B)Computer-aided design (CAD)
C)"Front end" telecommunications
D)All of the choices are correct.

Question 64

What sets the RIM BlackBerry apart from other wireless PDA solutions?

A)Lower price
B)It is always on and connected
C)Smaller size and weight
D)Longer battery life

Question 65

According to the text,which of the following is not true of Mainframes?

A)Mainframes usage is growing.
B)Mainframes are large,fast,and powerful.
C)Mainframes can be used as superservers for networks.
D)All of the choices are correct.

Question 66

An intelligent terminal that can perform data entry and some information processing tasks independently is called a _______________ terminal.

A)transaction
B)dumb
C)Windows
D)remote

Question 67

A BlackBerry ____________________.

A)performs common PDA functions
B)doesn't have a visible antenna
C)uses the same network as most mobile phones
D)All of the choices are correct.

Question 68

The _______________ generation of computers was characterized by further miniaturization of circuits,increased multiprogramming,and virtual storage memory.

A)second
B)third
C)fourth
D)fifth

Question 69

The new,much faster mobile phone network is termed:

A)G3
B)P3
C)3P
D)3G

Question 70

The first generation of computers relied on _______________.

A)miniaturized circuits
B)transistors
C)vacuum tubes
D)punch cards

Question 71

Which of the following would not be considered a characteristic of supercomputer systems?

A)Uses parallel,interconnected microprocessors
B)Can process at speeds of billions of operations per second
C)Runs the same software found on most home computers,but at faster speeds
D)Designed specifically for high-speed numeric computation

Question 72

The new and popular mobile telephone made by Apple is the:

A)iPod
B)iTune
C)iPhone
D)iTele

Question 73

Which of the following statements best describes a workstation computer?

A)Supports applications with heavy mathematical computing and graphics display demands,such as computer-aided design (CAD)
B)Coordinates telecommunications and resource sharing in small,local area networks (LANS)
C)Allows convenient mobile communications and touch-screen computing
D)All of the choices are correct.

Question 74

Information appliances may connect to your home television set enabling people to do all the following except:

A)Surf the World Wide Web.
B)Send and receive e-mail.
C)Vote in the current election.
D)Watch television programs.

Question 75

Which of the following does not apply to a personal digital assistant (PDA)?

A)Supports applications with heavy mathematical computing.
B)Pen-based handwriting recognition.
C)Fully functional mobile telephone.
D)Considered an information appliance.

Question 76

The function of an output device is to:

A)Convert data into an electronic machine-readable form for direct entry into a computer system
B)Perform the arithmetic and logic functions required in computer processing
C)Convert electronic information produced by the computer system into human-intelligible form for presentation to end-users
D)Store the data and program instructions needed for processing

Question 77

According to the text,which of the following is considered by millions of computer users to be the primary function of the desktop PC?

A)Allows access to the Internet
B)Increases productivity through the use of software applications
C)Facilitates creation of local area networks
D)All of the choices are correct

Question 78

Personal digital assistants most commonly use which of these technologies?

A)Pen-based computing
B)Optical scanning
C)Jump drives
D)Back-lit keyboards

Question 79

Which of the following would perform the required mathematical and logic operations of a central processing unit (CPU)?

A)Control unit
B)Arithmetic-logic unit
C)RAID unit
D)Fuzzy logic unit

Question 80

The Blackberry is a popular wireless device for all of the following reasons except:

A)Visible antenna.
B)Performs all PDA functions.
C)Acts as a fully functional mobile telephone.
D)Integrated e-mail attachment viewing.