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CS100 > Lesson 2: The Internet: Connecting and Communicating Online (2) > Flashcards

Lesson 2: The Internet: Connecting and Communicating Online (2) Flashcards

1
Q

Computer ____ describes a process in which two or more computers or devices transfer data, instructions, and information

A

communications

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2
Q

Uses of Computer Communications

A
  1. Blogs
  2. Chat rooms
  3. E-mail
  4. Fax
  5. FTP
  6. Instant messaging
  7. Internet
  8. Newsgroups
  9. RSS
  10. Video conferencing
  11. VoIP
  12. Web
  13. Web 2.0
  14. Web folders
  15. Wikis
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3
Q

Allows users to send and receive short text messages on a phone or other mobile device or computer

A

Text messaging

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4
Q

Allows users to send pictures and sound files

A

Picture messaging

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5
Q

Allows users to send pictures and sound files

A

Video messaging

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6
Q

Allows wireless users to exchange real-time messages with one or more other users

A

Wireless instant messaging

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7
Q

Allow people to connect wirelessly to the Internet from home, work, school, and in many public locations

A

Wireless Internet access points

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8
Q

A coffeehouse, restaurant, or other locations that provides personal computers with Internet access to its customers

A

Cybercafé

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9
Q

A navigation system that consists of one or more earth-based receivers that accept and analyze signals sent by satellites

A

global positioning system (GPS)

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10
Q

Includes tools that enable users to share documents via online meetings and communicate with other connected users

A

Collaboration software

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11
Q
  • Helps groups of people work
    together on projects and
    share information over a
    network
  • Component of workgroup
    computing
  • Major feature is group
    scheduling
A

Groupware

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12
Q
  • Allows someone to leave a
    voice message for one or
    more people
  • Computer in voice mail
    system converts an analog
    voice message into digital
    form
  • A voice mailbox is a storage
    location on a hard disk in the
    voice mail system
A

Voice mail

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13
Q

Enable programmers to create applications that communicate with other remote computers over the Internet or on an internal business network

A

Web services

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14
Q

A Web application that combines services from two or more sources

A

Mashup

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15
Q

A collection of computers and devices connected
together via communications devices and transmission media

A

Network

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16
Q

A network the connects computers and devices in a limited geographical area

A

local area network (LAN)

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17
Q

A LAN that uses no physical wires

A

Wireless LAN (WLAN)

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18
Q

Connects LANs in a metropolitan area

A

Metropolitan area network (MAN)

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19
Q

A network that covers a large geographical area

A

Wide area network (WAN)

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20
Q

The design of computers, devices, and media on a network is sometimes called the _____

A

network architecture

21
Q

Describes an Internet network on which users access each other’s hard disks and exchange files directly over the Internet

22
Q

Refers to the layout of the computers and devices in a communications network

A

Network topology

23
Q

An internal network that uses Internet technologies

24
Q

Allows customers or suppliers to access part of its intranet

25
Q

Network Communications Standards

A
  1. Ethernet
  2. Token ring
  3. TCP/IP
  4. Wi-Fi
  5. Bluetooth
  6. UWB
  7. IrDA
  8. RFID
  9. WiMAX
  10. WAP
26
Q

A network standard that specifies no computer controls when data can be transmitted

27
Q

The t___ r__ standard specifies that computers and devices on the network share or pass a special signal (token)

A

token ring

28
Q

A network standard that defines how messages are routed from one end of a network to another

29
Q

Identifies any network based on the 802.11 standard that facilitates wireless communication

30
Q

Defines how two Bluetooth devices use short-range radio waves to transmit data

31
Q

Specifies how two UWB devices use short-range radio waves to communicate at high speeds

A

UWB (ultra-wideband)

32
Q

Transmits data wirelessly via infrared (IR) light waves

33
Q

Uses radio signals to communicate with a tag placed in or attached to an object, animal, or person

34
Q
  • Developed by IEEE
  • Towers can cover a 30-mile radius
  • Two types are fixed wireless and mobile wireless
  • Provides wireless broadband Internet access
A

WiMAX (802.16)

35
Q
  • Specifies how some mobile devices can display the content of Internet services
    • Web
    • E-mail
    • Chat rooms
  • Uses a client/server network
A

Wireless Application
Protocol (WAP)

36
Q

The worldwide telephone system

A

Public switched telephone network (PSTN)

37
Q

Communications Over the Telephone Network

A
  1. Dial-up lines
  2. Dedicated line
  3. ISDN
  4. DSL
  5. FTTP
  6. T-carrier line
  7. ATM
38
Q

Any type of hardware capable of transmitting data, instructions, and information between a sending device and a receiving device

A

Communications device

39
Q

Converts signals between analog and digital

A

Dial-up modem

40
Q

Sends and receives data and information to and from a digital line

A

Digital modem (ISDN modem, DSL modem, Cable modem)

41
Q

Uses the cell phone network to connect to
the Internet wirelessly from a notebook computer, a smart phone, or other mobile device

A

Wireless modem

42
Q

Enables a computer or device to access a network

A

Network card

43
Q

A central communications device that allows
computers and devices to transfer data wirelessly among themselves or to a wired network

A

Wireless access point

44
Q

The amount of data that can travel over a communications channel sometimes is called the ____

45
Q

Carries one or more signals

A

Transmission media

46
Q

Transmit multiple signals simultaneously

47
Q

Physical Transmission Media

A
  1. Twisted-pair cable
  2. Coaxial cable
  3. Fiber-optic cable
48
Q

Wireless Tranmission Media

A
  1. Infrared
  2. Broadcast radio
  3. Cellular radio
  4. Microwaves
  5. Communications Satellite

CS100 (11 decks)

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