Chapter 8- Wireless, Mobile Computing & Mobile Commerce

Internet of Things (IoT)

system in which any object, natural or manmade, has a unique identity (i.e., its own IP address) and is able to send and receive information over a network (i.e., the Internet) without human interaction.

RFID (radio frequency identification)

technology allows manufacturers to attach tags with antennas and computer chips on goods and then track their movement through radio signals. was developed to replace bar codes.

near- field communication (NFCs)

the smallest range of any short-range wireless network. It is designed to be embedded in mobile devices such as cell phones and credit cards.

medium range wireless networks

these networks are the familiar wireless local area networks (LANs)

MiFi

type of medium range wireless network that is expensive both to acquire and to use. (hint: it is a hotspot)

mobility

users carry a device with them and can initiate a real-time contact with other systems from wherever they happen to be.

audio portal

website with audio interference -can also be accessed through a standard phone or a cell phone.

cells

what the cell phone communicates with radio antennas, or towers, placed within adjacent geographic areas

telemetry

wireless transmission and receipt of data gathered from remote sensors. -has numerous computer applications

mobile portal

A portal that aggregates and provides content and services for mobile users.

3 basic short range networks

Bluetooth, ultra-wideband (UWB), and near-field communications (NFC) are what?

A. 4G

LTE is ____ cellular technology. A. 4G B. 3G C. 5G D. 2G

location-based commerce (L- commerce)

Mobile commerce transactions targeted to individuals in specific locations, at specific times.

expense

The major problem with RFID has been:

-microwave -satellite -radio

What are the 3 major types of wireless transmission media?

WiMaX

Worldwide Interoperability for Microwave Access

intrabusiness applications

commerce applications used within organizations

radio

disadvantages: -creates electrical interference problems -susceptible to shopping unless encrypted -signal break up

LEO

low earth orbit

footprint

the area of Earth's surface reached by a satellite's transmission

mobile computing

two major characteristics: -mobility -broad reach

C

All of the following statements regarding QR codes are true except: A. QR codes are more resistant to damage than bar codes B. QR codes store more info than bar codes C. QR codes can only store information that is comprised of numbers and text D. QR codes can be read from any direction or angle

B.GEO

You have satellite TV. Providers can use ___ satellites to get this service to you. A. LEO B. GEO C. MEO D. VEO

GEO

geostationary earth orbit

Wireless Fidelity (WiFi)

is a medium-range WLAN, which is a wired LAN but without the cables.

Satellite transmission systems

make use of communication satellites -GEO, MEO, and LEO (type of transmission systems)

dematerilization

occurs when the functions of many physical devices are included in one other physical device.

MiFi

small, portable wireless device that provides users with a permanent Wi-Fi hotspot wherever they go

broad reach

the fact that when users carry an open mobile device, they can be reached instantly, even across great distances.

LTE

wireless broadband technology designed to support roaming Internet access through smartphones and handheld devices. is approximately 10 times faster than 3G networks.

medium range wireless networks

-WiFi -WiFi Direct -MiFi -Super WiFi are what type of networks?

Wide Area Wireless Networks

-cellular radio -wireless broadband (WiMax) are what type of networks?

m- commerce applications

-financial services -location based application and services -mobile advantage -intrabusiness applications -accessing info -telemetry applications are all part of what?

WiMax

-has a wireless access range of up to 31 miles, compared to 300 feet for Wi-Fi. -has a data transfer rate of up to 75 Mbps. It is a secure system, and it offers features such as voice and video. -can transmit broadband Internet connections to antennas on homes and businesses located miles away - provide long-distance broadband wireless access to rural areas and other locations that are not currently being served.

LEO

-located 400 to 700 miles above Earth's surface. -satellites move with respect to a point on Earth's surface and therefore must be tracked by receivers. -an pick up signals from weak transmitters. -many satellites

mobility and broad reach

-ubiquity -convenience -instant connectivity -personalization -localization of products and services are 5 added attributes from what?

adavtanages of wireless devices

1.They are small enough to easily carry or wear. 2.They have sufficient computing power to perform productive tasks. 3.They can communicate wirelessly with the Internet and other devices.

mobile computing

A real-time connection between a mobile device and other computing environments, such as the Internet or an intranet.

wireless access point

A transmitter with an antenna that connects a mobile device to a wired local area network is called a(n):

telemetry

Find my iPhone is an example of what m-commerce application?

C. micropayment

Using your cell phone to purchase a Coke from a vending machine is an example of: A. mobile banking B. wireless wallet C. micropayment D. brokerage service E. money transfer

E. Ultra- wideband

Which of the following is the most appropriate wireless technology for real-time location of caregivers and mobile equipment in health-care environments? A. microwave B. Infrared C. bluetooth D. Wi-Fi E. Ultra- wideband

low earth orbit

Which type of satellite requires the highest number of satellites to cover the earth?

D. Bluetooth

___ is a short range wireless network. A. lTE B. MiFI C. WiMAX D. Bluetooth

B. Wireless sensor networks

____ collect data from many points over an extended space. A. Wi- Fi Networks B. Wireless sensor networks C. location based applications D. Ultra- wideband networks E. Wi-Max networks

B. WiMAX

____ is a wide-area wireless network. A. LTE B. WiMAX C. MiFI D. NFC

D. NFC; short

____ is designed to be embedded in mobile devices and can be used with mobile wallets. It is a _____ -range wireless network technology. A. UWB; medium B. UWB; short C. NFC; medium D. NFC; short

A. GEO

____ satellites are the most expensive to build. A. GEO B. VEO C. MEO D. LEO

B. MEO

____ satellites are used to run the GPS system. A. VEO B. MEO C. GEO D. LEO

B. GEO

____ satellites have the longest orbital life. A. LEO B. GEO C. VEO D. MEO

C. LEO

____ satellites have the shortest orbital life. A. GEO B. MEO C. LEO D. VEO

C. NFC

____ technology enables the use of mobile wallets. A.WiMAX B. UWB C. NFC D. Wi-FI

C. radio

____ transmission systems are inexpensive and easy to install but they create electrical interference problems. A. microwave B. satellite C. radio D. fiber

c. satellite

____ transmission systems can have a large coverage area but their signals experience propagation delay. A. microwave B. radio c. satellite d. fiber

personal area network

a computer network used for communication among computer devices

ultra- wideband

a high-bandwidth wireless technology with transmission speeds in excess of 100 Mbps.

Global Positioning System (GPS)

a wireless system that uses satellites to enable users to determine their position anywhere on earth

microwaves

advantages: -high bandwidth -relatively inexpensive

radio

advantages: -high bandwidth -signals pass through walls -inexpensive and easy to install

satellite

advantages: -high bandwith -large coverage area

MiFi

also known as intelligence mobile hotspot

propagation delay

any delay in communications from signal transmission time through a physical medium

mobile commerce

can be transacted on the Internet, private communication lines, smart cards, and other infrastructures. creates opportunities for businesses to deliver new services to existing customers and to attract new customers.

Super WiFi

coined by the U.S. Federal Communications Commission (FCC) to describe a wireless network proposal that creates long-distance wireless Internet connection. uses the lower-frequency "white spaces" between broadcast TV channels. These frequencies enable the signal to travel farther and penetrate walls better than normal Wi-Fi frequencies.

satellite

disadvantages: -expensive -must have line of sight communication -signals experience propgation delay -must have encyrption for security

microwaves

disadvantages: -requires line of sight communication -susceptible to environmental interference

m- commerce

driven by the widespread availability of mobile devices, the declining prices of such devices, and rapidly improving wireless bandwidth.

WiFi Direct

enables peer-to-peer communications, so devices can connect directly. It allows users to transfer content among devices without having to rely on a wireless antenna.

smart phone

is a new class of digital communication device that provides an organizer, cell phone, digital camera, access to e-mail, Internet access, and short message service.

Wireless Application Protocol

is the standard that enables wireless devices to access Web-based information and services.

bar code

known as the Universal Product Code (UPC), is made up of 12 digits that are batched in various groups.

MEO

located about 6,000 miles above Earth's surface -require more satellites from Earth bc of a smaller footprint than GEO -number of satellites: 10-12

benefits of WiFi

low cost and its ability to provide simple Internet access. It is the greatest facilitator of the wireless Internet—that is, the ability to connect to the Internet wirelessly.

bluetooth

low power consumption and the fact that it uses radio waves that are emitted in all directions from a transmitter are advantages for what?

MEO

medium earth orbit

Wide -Area Wireless Networks

networks that connect users to the Internet over a geographically dispersed territory. These networks typically operate over the licensed spectrum—that is, they use portions of the wireless spectrum that are regulated by the government

GEO

orbit 22,300 miles directly above the equator. These satellites maintain a fixed position above Earth's surface because, at their altitude, their orbital period matches the 24-hour rotational period of Earth -TV satellites and broadcasts -8 satellites

cellular radio

phones that provide two-way radio communications over a cellular network of base stations with seamless handoffs. -1G to 5G