The Social Impact of

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21 Νοε 2013 (πριν από 3 χρόνια και 11 μήνες)

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Wireless
Communication:

The Social Impact of
Wireless Communication
in Community

Presented By:

Sally Ahmad

Mabood Maghsoudlou

Wais Maqsodi

Elizabeth Orr

Social Impact


Film


Satellites



WIFI


Routers


Bluetooth Technology

Film

Satellites


Satellites can be divided into five principal
types: research, communications,
weather, navigational, and
reconnaissance.


Communication satellites: provide a
worldwide linkup of radio, telephone and
television.


Weather Satellites: provide continuous, up
to date information about large
-
scale
atmospheric conditions such as cloud
cover and temperature profiles.


Navigation satellites: were developed
primarily to satisfy the need for a
navigation system that nuclear
submarines could use to update their
inertial navigation system.



Reconnaissance satellites: have
subsequently proved to have civilian
benefits, such as commercially
available satellite photographs
showing surface features in great
detail e.g. Kennan, AKA keyhole
reconnaissance satellite

Satellites (con’t)






Satellites

Advantages of using keyhole



Criminal Justice



Navigation



Infra red



CIA use

Satellites

Hazards of using keyhole


Burglars


Invasion of privacy


Illegal Ground
surveillance/Government use
CIA FBI


WIFI


Wi
-
Fi short for "Wireless Fidelity", is
a set of standards for
wireless

local
area networks

(
WLAN
) Wi
-
Fi was
intended to be used for wireless
devices and
LANs
, but is now often
used for
Internet

access. It enables a
person with a wireless
-
enabled
computer or
personal digital
assistant

(PDA) to connect to the
Internet when in proximity of an
access point

called a
hotspot
.


WIFI

How it has changed our lives?



Unlike
packet radio

systems, Wi
-
Fi uses
unlicensed radio spectrum and does not require
regulatory approval for individual deployers.


Allows LANs to be deployed without cabling,
potentially reducing the costs of network
deployment and expansion. Spaces where cables
cannot be run, such as outdoor areas and
historical buildings, can host wireless LANs.


Wi
-
Fi products are widely available in the market.
Different brands of access points and client
network interfaces are interoperable at a basic
level of service.

WIFI

How it has changed our lives?

(con’t)


Competition amongst vendors has
lowered prices considerably since their
inception.


Many Wi
-
Fi networks support roaming, in
which a mobile client station such as a
laptop computer can move from one
access point to another as the user moves
around a building or area.


Many access points and network
interfaces support various degrees of
encryption to protect traffic from
interception.


Routers

What are Routers?


Transmits data


packets


Wired or Wireless


Share internet
connection


Routers


Social Impact of Routers?


Broadband connectivity for the
home


Effective workplace


Marketplace


Routers

Marketplace
Force


Large
Audio/Video
Files


Time Savings


Flash Websites

Bluetooth Technology


What is Bluetooth?


Short
-
range radio specification
focused on communication between
the Internet and Net devices, plus it
defines communication protocols
between devices and computers.



How Bluetooth Works



Bluetooth Technology

Bluetooth Characteristics


It separates the frequency band into hops


Up to eight devices can be networked in a
piconet.


Signals can be transmitted through walls and
briefcases, thus eliminating the need for line
-
of
-
sight.


Devices do not need to be pointed at each other,
as signals are omni
-
directional.


Both synchronous and asynchronous
applications are supported, making it easy to
implement on a variety of devices and for a
variety of services, such as voice and Internet.


Governments worldwide regulate it, so it is
possible to utilize the same standard wherever
one travels.


Bluetooth Technology

Where is
Bluetooth Being
Used?


PDIs


Printers


Phones


Pagers


Modems


cameras


LANs


Medical and
industrial equipment


Watches


Bluetooth Technology

Social Impact


Communication


Classroom Learning


Home/ Work













Bluetooth Technology

http://www.apple.com/bluetooth/

CONCLUSION


Satellites


WIFI


PDA/ Routers


Bluetooth

QUESTIONS