True/False
Indicate whether the
statement is true or false.
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1.
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A refrigerator that allows you to send email is an
example of digital convergence.
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2.
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Caller ID is a feature that prevents your name from
being shown on a phone caller's display when you receive an incoming call.
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3.
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In the switched-network telecommunications model, a
common carrier provides circuit switching among public users; that is, a permanent connection is
established by closing a circuit.
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4.
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In the tree-and-branch telecommunications model, a
centralized information provider sends out messages through many channels to thousands of
consumers.
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5.
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The constantly shifting attention of people who do
two demanding tasks simultaneously--such talking on the phone while driving in heavy traffic--is
known as "absent presence."
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6.
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MP3, a digital audio format that allows audio files
to be compressed, is short for "MPEG Audio Layer 3."
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7.
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Digital music players can be divided into those
that use hard-disk drives for storage and those that beam in audio files by radio
waves.
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8.
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The quality of a song in a digital audio player is
determined by the analog sampling rate, the number of times that a song is measured and converted
from a digital to an analog value.
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9.
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The threshold for safe, extended listening of MP3
players is 85 decibels for 8 hours, but the volume of most portable compact-disk players has been
found to be 91–121 decibels.
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10.
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Satellite radio combines digital and analog
broadcast signals, enabling stations to offer and analog main channel and digital
"sidebands" so that multiple types of content can be broadcast from the same position on
the dial.
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11.
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Unlike traditional radio, podcasting requires no
studio or broadcast tower, and there's no Federal Communications Commission
regulation.
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12.
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Podcast-receiving software is called an
aggregator.
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13.
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A single-lens reflex camera is a camera that has a
reflecting mirror that reflects the incoming light in such a way that the scene viewed by the viewer
through the viewfinder is the same as what's framed by the lens.
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14.
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The more megapixels a digital camera has, the
better the resolution and the higher the quality of the image, and so the higher the price of the
camera.
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15.
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The number of megapixels a camera has is the only
factor affecting photographic quality.
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16.
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Like a PC, a digital camera needs time to start up,
perhaps a second or two.
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17.
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The LCD screen is the eye-level glass device on the
camera that, when you look through it, shows the image to be photographed.
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18.
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A PDA is basically a small computer, with specially
designed processors and operating system software.
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19.
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In a PDA, data is stored in RAM, ordinarily a
volatile form of storage that loses all contents when shut off but which in PDAs is kept functioning
with a small amount of power running off the battery even after the machine is turned
off.
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20.
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PDAs feature touch-sensitive screens that allow you
to enter data with a stylus, by tapping or writing on the screen.
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21.
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On a tablet PC, the stylus can take the place of a
keyboard when users use an on-screen input panel or tap letters and numbers directly on an on-screen
keyboard.
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22.
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Analog television uses a digital signal or a series
of 0s and 1s.
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23.
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High-definition television (HDTV) works with
digital broadcasting signals and has a wider screen and higher resolution than standard
television.
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24.
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With video on demand (VOD or VoD), television and
video signals are sent to viewers using internet protocols.
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25.
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Technology has changed the way people experience
television by changing when they can watch it, where they can watch it, and why they can watch
it.
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26.
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Texting is the sending of book-length text messages
over the internet to another computer or hand-held device.
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27.
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Ringtones may be monophonic, polyphonic, or music
tones.
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28.
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In "moblogging," smartphone cameras are
used to visually record all kinds of events, which are then displayed and transmitted to websites
such as Mobog, Textamerica, and Yafro.
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29.
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The Microsoft Xbox 360 features a
"Broadway" processor from IBM.
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Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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30.
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Digital convergence combines several industries,
including the following:
a. | computers and communications | c. | computers and communications | b. | computers and communications | d. | All of These |
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31.
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An example of digital portability is a
________.
a. | mobilephone | c. | refrigerator with access to email | b. | room TV with internet access | d. | . none of these |
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32.
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Telecommunications can be organized through two
kinds of arrangements: the ________ model and the ________ model
a. | river-and-stream; switched-circuit | c. | parent-and-child; divided-road | b. | tree-and-branch; switched-network | d. | None of
these |
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33.
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Studying while eating, along with listening to
music while talking on the phone or handling email, are all instances of ________
a. | choice overload | c. | multitasking | b. | surplus
websurfing | d. | digital convergence |
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34.
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The downside of personalization is people feel
overburdened with too much choice, so that they are more likely to ________.
a. | regret their decisions | c. | have exces sive expectations about their
decisions | b. | be reluctant to make
decisions | d. | All of these |
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35.
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MP3 files are compressed, so that they are about
________ the size of uncompressed audio files
a. | one-tenth | c. | one-third | b. | one-quarter | d. | one-half |
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36.
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Digital music players utilize one or both of the
following technologies: ________ and ________.
a. | hard-disk drives; flash memory | c. | microwaves; infrared waves | b. | Wi-Fi; Bluetooth | d. | None of
these |
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37.
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The quality of a song on a digital audio player is
determined by its ________, the number of times a song is measured and converted to a digital
value
a. | resolution | c. | sampling rate | b. | zoom rate | d. | file transfer
rate |
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38.
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How many children and teens in the U.S. suffer from
noise-induced hearing loss (in part caused by hours of listening to MP3 players)?
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39.
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A form of radio in which broadcasters are able to
squeeze two digital and one analog station on the same frequency is called ________
radio
a. | high-definition | c. | satellite | b. | internet | d. | none of these |
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40.
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The biggest competitor to regular radio is
________.
a. | satellite-radio | c. | high-definition-radio | b. | internet-radio | d. | non of these |
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41.
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A camera, either film or digital, that
automatically adjusts settings such as exposure and focus is a ________ camera
a. | wide-angle | c. | point-and-shoot | b. | single-lens reflex | d. | optical zoom |
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42.
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Another name for image sharpness is
________
a. | pixel setting | c. | optical zoom | b. | digital zoom | d. | resolution |
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43.
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A digital camera's images are stored on
________.
a. | mini-CD’s | c. | flash memory cards | b. | digital film | d. | All of these |
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44.
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The eye-level glass device on the camera that you
look through and that shows the image to be photographed is called the ________.
a. | LCD screen | c. | optical viewfinder | b. | image frame | d. | non of these |
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45.
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A portable device that stores personal organization
tools, such as schedule planner, address book, and to-do list, along with other, more specialized
software, is called a ________.
a. | palmtop | c. | personal digital assistant | b. | handheld | d. | All of these |
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46.
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To transfer files from your PDA to your PC, you can
do the following: ________.
a. | Pull out your PDA's flash card and insert it into
your computer's card reader. | c. | Put
your PDA in a special cradle plugged into a USB port | b. | Put your PDA in a special cradle plugged into a USB
port | d. | Any of
these |
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47.
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A tablet PC is a special notebook computer
outfitted with a digitizer tablet and ________ that allows a user to handwrite text on the
unit's screen.
a. | lightpen | c. | stylus | b. | touchscreen | d. | cursor |
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48.
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When most of us tune in our TV sets, we get a
system of varying signal amplitude and frequency that represents picture and sound elements. This
system is called ________.
a. | interactive television | c. | internet television | b. | personalized television | d. | analog
television |
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49.
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) ________ TV uses a digital signal, or series of 0s and 1s, and is much
clearer than analog TV
a. | Digital | c. | Standard-definition | b. | High-definition | d. | none of these |
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50.
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________ consists of a wide set of technologies
that enable viewers to select videos or TV programs from a central server to watch when they
want
a. | Video on demand | c. | Interactive TV | b. | TiVo | d. | Personal TV |
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51.
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________ is a technology in which television and
video signals are sent to viewers using internet protocols
a. | Internet TV | c. | Interactive Protocol TV | b. | Internet Protocol
TV | d. | Internet Personal
TV |
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52.
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The societal effects of the New TV technology are
that it can change ________.
a. | when you watch TV | c. | the nature of TV programs | b. | where you watch
TV | d. | All of
these |
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53.
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________ is using a cellphone or PDA to send short
messages to a pager, PDA, smartphone, or other handheld device
a. | Instant messaging | c. | Text messaging | b. | Internet messaging | d. | Voice messaging |
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54.
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Ringtones may be ________.
a. | music tones | c. | monophonic | b. | polyphonic | d. | any of these |
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55.
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An example of a videogame console is the
________.
a. | Microsoft PlayStation 3 | c. | Nintendo Xbox
360 | b. | Sony Revolution | d. | none of these |
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