Management Information Systems Chapter 8 Quiz
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Questions and Answers

What is one major disadvantage of wireless devices for businesses?

  • They can capture and transmit sensitive proprietary information. (correct)
  • They cannot connect to the Internet.
  • They require constant software updates.
  • They have limited battery life.

Which wireless transmission media requires an unobstructed line of sight for optimal performance?

  • Bluetooth
  • Microwave (correct)
  • Wi-Fi
  • Radio

What is a major characteristic of Geostationary Earth Orbit (GEO) satellites?

  • They have negligible transmission delay.
  • They move rapidly relative to the Earth.
  • They are the cheapest to build and maintain.
  • They can provide global coverage with few satellites. (correct)

What is the primary use of GPS technology?

<p>Determining position anywhere on Earth (B)</p> Signup and view all the answers

Which type of wireless network is characterized by Bluetooth technology?

<p>Short-range wireless networks (A)</p> Signup and view all the answers

What is a key advantage of medium-earth orbit (MEO) satellites compared to GEO satellites?

<p>They have negligible transmission delays. (A)</p> Signup and view all the answers

Which characteristic is NOT a feature of radio transmission media?

<p>Requires precise alignment for transmission (B)</p> Signup and view all the answers

Which of the following is a disadvantage of satellite communication?

<p>Can be affected by environmental interference (A)</p> Signup and view all the answers

How many satellites are typically used to determine a three-dimensional location using GPS?

<p>Four (D)</p> Signup and view all the answers

What technology allows mobile devices to charge without connecting with a cable?

<p>Wireless charging (B)</p> Signup and view all the answers

Which one of the following wireless technologies has the highest bandwidth?

<p>Bluetooth 4.0 (A)</p> Signup and view all the answers

Which of the following best describes the use of low-earth orbit (LEO) satellites?

<p>They move rapidly relative to the Earth. (A)</p> Signup and view all the answers

What is a primary drawback of using radio transmission?

<p>High susceptibility to snooping unless encrypted (A)</p> Signup and view all the answers

What cellular capability allows users to send short messages up to 160 characters?

<p>Short message service (SMS) (C)</p> Signup and view all the answers

Which of the following describes the primary use of Ultra-wideband (UWB)?

<p>Detecting individuals behind barriers in emergency situations (C)</p> Signup and view all the answers

What is the main function of Near-Field Communications (NFC)?

<p>Enabling communication between devices within close proximity (D)</p> Signup and view all the answers

What technology enables devices to connect directly in Wi-Fi networks?

<p>Wi-Fi Direct (A)</p> Signup and view all the answers

What key characteristic allows mobile computing to provide services almost anywhere?

<p>Ubiquity (D)</p> Signup and view all the answers

Which characteristic distinguishes 5G cellular technology from earlier generations?

<p>Faster data transfer rates (C)</p> Signup and view all the answers

Which application is an example of location-based commerce (L-commerce)?

<p>Using a ride-sharing app that relies on real-time locations (A)</p> Signup and view all the answers

What does WiMAX primarily provide compared to traditional Wi-Fi?

<p>Greater range and security (A)</p> Signup and view all the answers

How does wearable technology benefit the healthcare industry?

<p>By continuously monitoring patient conditions (A)</p> Signup and view all the answers

What encompasses the concept of the Internet of Things (IoT)?

<p>Connecting objects with processing power to networks (B)</p> Signup and view all the answers

What is the main advantage of mobile commerce (m-commerce) over traditional e-commerce?

<p>Ability to make purchases on-the-go (D)</p> Signup and view all the answers

What is one of the main drivers of m-commerce growth?

<p>Rising mobile device accessibility (A)</p> Signup and view all the answers

Which aspect does NOT contribute to the value-added attributes of mobile computing?

<p>Disconnection from services (A)</p> Signup and view all the answers

What does Super Wi-Fi enable for users?

<p>Long-distance internet connections (A)</p> Signup and view all the answers

What role do antennas play in cellular radio technology?

<p>Facilitating communication between cellphones (A)</p> Signup and view all the answers

Flashcards

Wireless Technologies

Methods of transmitting data using radio waves, microwaves, or satellites, rather than wires.

Wireless Devices

Devices like smartphones, capable of wireless communication.

Smartphone Capabilities

Modern smartphones have numerous functions like cellular, Bluetooth, Wi-Fi, cameras, wallets, GPS and internet access.

Microwave Transmission

Wireless transmission method using electromagnetic waves.

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Satellite Transmission

Wireless transmission using satellites in orbit around the Earth.

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Radio Transmission

Wireless transmission using radio waves.

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Wireless Transmission Media (Channels)

Microwave, satellite, and radio are the main ways to transmit data wirelessly.

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GEO Satellites

Geostationary Earth Orbit satellites appear stationary from the ground.

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MEO Satellites

Medium Earth Orbit satellites move relative to a fixed point on Earth.

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LEO Satellites

Low Earth Orbit satellites move quickly relative to a fixed point on Earth.

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Global Positioning System (GPS)

A system using satellites to determine location on Earth.

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Bluetooth

A short-range wireless technology for connecting devices.

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Short-Range Wireless Networks

Networks using technologies like Bluetooth for connecting nearby devices.

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Wireless Computer Networks

Networks that connect computers and devices without cables.

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Mobile Commerce

Business activities conducted using mobile devices.

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Bandwidth

The rate at which data can be transmitted.

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Ultra-wideband (UWB)

A high-bandwidth wireless technology enabling speeds over 100 Mbps, useful for streaming multimedia.

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Near-Field Communications (NFC)

Short-range wireless technology embedded in mobile devices (like phones and cards) for payments and other transactions, with a short range.

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Wi-Fi

A medium-range wireless local area network (WLAN). It's similar to a wired LAN but without cables.

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Wi-Fi Direct

Wi-Fi feature enabling direct peer-to-peer device connections.

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MiFi

A portable Wi-Fi hotspot providing permanent Internet access, with a range of roughly 10 meters.

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Super Wi-Fi

Wireless network creating long-distance wireless Internet connections.

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Wide-Area Wireless Networks

Networks connecting users to the internet over a large geographical area.

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Cellular Radio

A method of wide-area wireless communication using radio towers in geographic areas to connect cell phones.

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WiMAX

Wireless access technology with a range up to 50 kilometers, offering voice and video features, and data rates up to 75 Mbps.

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Mobile Computing

Real-time connection between a mobile device and other computing environments like the internet or intranet.

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Mobile Commerce (M-commerce)

E-commerce transactions in a wireless environment using the internet.

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Location-based commerce (L-commerce)

M-commerce targeting specific locations, like the Uber app.

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Internet of Things (IoT)

A system with objects having processing power, wireless or wired connections to a global network.

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Study Notes

Course Information

  • Course title: Management Information Systems
  • Course code: ADM 2372
  • Instructor: Mayur Joshi, PhD
  • Instructor email: [email protected]

Week 12: Wireless, Mobile Computing & Mobile Commerce (Chapter 8)

  • Topic: Wireless, Mobile Computing & Mobile Commerce (Chapter 8)

Agenda

  • Topic 1: Wireless Technologies
  • Topic 2: Wireless Computer Networks and Internet Access
  • Topic 3: Mobile Computing and Mobile Commerce
  • Topic 4: The Internet of Things (IoT)

8.1 Wireless Technologies

  • Wireless Devices
    • Smartphones
  • Wireless Transmission Media
    • Microwave
    • Satellite
    • Radio

Wireless Devices

  • Advantages for users:
    • Small enough for easy carrying or wearing
    • Sufficient computing power for productive tasks
    • Wireless communication with the internet and other devices
  • Disadvantage for businesses:
    • Workers can capture and transmit sensitive proprietary information

Modern Smartphone Capabilities

  • Cellular telephony
  • Bluetooth
  • Wi-Fi
  • Digital camera for images and video
  • Mobile (digital) wallets
  • Wireless charging/fast charging
  • Global positioning system (GPS)
  • Organizer
  • Scheduler
  • Address book
  • Calculator
  • E-mail
  • Biometric applications
  • Cloud storage
  • Short message service (SMS)
  • Instant messaging
  • Text messaging
  • MP3 music player
  • Video player
  • Internet access with full-function browser
  • QWERTY keyboard

Wireless Transmission Media

  • Wireless media (aka broadcast media):
    • Transmit signals without wires
  • Major types of wireless media channels
    • Microwave: uses electromagnetic waves
    • Satellite: requires communication satellites
      • GEO (geostationary), MEO (medium-earth-orbit), or LEO (low-earth-orbit)
      • Satellites facilitate GIS (Geographic Information Systems) and Internet access, sometimes the only way in remote areas.
    • Radio: uses radio waves

Wireless Transmission Media (Advantages and Disadvantages)

Channel Advantages Disadvantages
Microwave High bandwidth, relatively inexpensive Must have unobstructed line of sight, susceptible to environmental interference.
Satellite High bandwidth, large coverage area Expensive, must have unobstructed line of sight, signals experience propagation delay, must use encryption for security.
Radio High bandwidth, signals pass through walls, inexpensive and easy to install Creates electrical interference problems, susceptible to snooping unless encrypted.

Types of Satellites

  • Geostationary Earth Orbit (GEO)
  • Middle Earth Orbit (MEO)
  • Low Earth Orbit (LEO)

Wireless Transmission Media (Types of Satellites)

Type Characteristics Orbit #s Use
GEO Stationary relative to a point on Earth, few needed for global coverage, long delay, expensive to build and launch. 22,300 miles 8 TV signal
MEO Moves relative to a point on Earth, moderate number needed for coverage, medium-powered transmitters. 6,434 miles 10-12 GPS
LEO Moves rapidly relative to a point on Earth, large number needed for coverage, low-powered transmitters, minimal delay, least expensive to build, shortest orbital life 400-700 miles Many Telephone

Global Positioning Systems (GPS)

  • Wireless system using satellites to determine user location anywhere on Earth.
  • Supported by 24 MEO satellites worldwide.
  • Four International GPS systems (United States's GPS, Russia's GLONASS, China's BeiDou, and the European Union's, Galileo).
  • Two regional GPS systems (India's NAVIC (7 satellites) and Japan's QZSS (4 satellites)).
  • Uses of GPS: Navigation, mapping, surveying, 911 location.
  • Satellite position is broadcast continuously along with time signals.
  • Three or four satellites can locate a receiving station within a few meters.
  • Software converts latitude/longitude to electronic maps.

Wireless Computer Networks

  • Short-Range Wireless Networks: Bluetooth, Ultra-wideband (UWB), Near-Field Communications (NFC).
  • Medium-Range Wireless Networks: Wi-Fi, Wi-Fi Direct, MiFi, Super Wi-Fi.
  • Wide-Area Wireless Networks: Cellular radio, Wireless broadband (WiMAX).

Mobile Computing

  • Real-time connection between mobile devices and other computing environments (e.g., internet, intranet).
  • Two major characteristics: Mobility and Broad reach.
  • Mobility and broad reach create 5 value-added attributes: Ubiquity, Convenience, Instant connectivity, Personalization, Localization of products/services.

Mobile Commerce

  • Electronic commerce (EC) transactions in a wireless environment (especially via internet).
  • M-commerce: purchasing goods/services via wireless internet-enabled devices.
  • L-commerce (location-based commerce): transactions targeted to specific locations (e.g., Uber).

Mobile Commerce Applications

  • Financial services
  • Location-based apps and services
  • Mobile advertising
  • Intrabusiness apps
  • Accessing information
  • Telemetry apps

The Internet of Things (IoT)

  • Every object has processing power and connections to a global network.
  • Internet of Everything, Internet of Anything, Machine-to-Machine (M2M) Communication, Radio-Frequency Identification (RFID).
  • Any object (natural or manmade) has a unique IP address.
  • Examples in healthcare, smart homes, smart stores, smart cities, automotive, smart factories, digital twins, supply chain management, energy management, transportation, agriculture, and hospitality.

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Week 12 Wireless & Mobile Computing PDF

Description

Test your knowledge on the concepts of Wireless and Mobile Computing as covered in Chapter 8 of the Management Information Systems course. This quiz includes topics such as wireless technologies, mobile commerce, and the Internet of Things (IoT). Assess your understanding of wireless devices and their implications for users and businesses.

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