This document discusses Wi-Fi and its applications. It defines Wi-Fi as a wireless technology brand owned by the Wi-Fi Alliance that uses IEEE 802.11 standards for interoperable wireless local area network (WLAN) products. The document outlines the history of Wi-Fi, its common uses like sharing files and streaming media, benefits such as mobility and reduced costs, security goals, typical ranges, and applications like enabling collaboration and providing internet access in public spaces.

1. WI-FI AND IT’S
APPLICATIONS
GROUP MEMBERS
M.Amin Zafar
Saad Mazhar
M.Azfer

2. CONTENTS
What is Wi-Fi
History
Uses
Benefits
Security Goals And Strategies
Range
Application Of Wi-Fi Technology

3. What is Wi-Fi?
Wi-Fi stands for Wireless-Fidelity. It’s a wireless
technology brand that is owned by Wi-Fi Alliance.
Alliance is a consortium of separate and
independent companies agreeing to a set of
common interoperable products based on the
family of IEEE 802.11 standards.

5. History
 802.11 technology has its origins in a 1985 ruling by the
US Federal Communications Commission that released
the ISM band for unlicensed use.
 In 1991 NCR Corporation with AT&T invented the
precursor to 802.11 intended for use in cashier systems.
 Vic Hayes has been called the “Father of Wi-Fi“, he was
involved in designing the initial standards within the IEEE.
 In 1999, the Wi-Fi Alliance was formed as a trade
association to hold the Wi-Fi trademark under which most
products are sold.

8. Uses
• It transfer photos & videos from your digital
camera.

9. • Share files with nearby computers.
• Send documents to your printer from any computer or
Smartphone.

10. Uses
• Stream audio to any
speakers in the house.

11. Uses
• Stream movies to any TV
in the house.
• Use your Smartphone as
a remote control.

12. • Sync your music library, photo library, or other
files with your Smartphone USB-free.

16. Benefits
• Wireless Ethernet : Wi-Fi is an Ethernet replacement. Wi-Fi
and Ethernet, both IEEE 802 networks , share some core
elements.
• Extended Access : The absence of wires and cables extends
access to places where wires and cables cannot go or where it
is too expensive for them to go.
• Cost Reduction : The absence of wires and cables brings
down cost, no need for trenching, drilling and other methods
that may be necessary to make physical connections.
• Mobility : Wireless means you have the freedom to change
your location without losing your connection
• Flexibility : Create opportunities for new applications as well
as the possibility of creative new solutions for legacy
applications.

17. Security Goals & Strategies
• Mutual Authentication : The goal of mutual
authentication is to make sure that both the client and AP
are who they say they are.
• Private Communication :The goal of privacy addresses
the challenge of sending information through open space,
which is accessible to everyone, friend and foe alike.
• Data Integrity : The goal of integrity means that the data
is intact when it is received.

18. Range
• A typical wireless access point
using 802.11b or 802.11g with a stock antenna might
have a range of 32 m (120 ft) indoors and 95 m (300 ft)
outdoors. IEEE 802.11n.
• Wi-Fi in the 2.4 GHz frequency block has slightly better
range than Wi-Fi in the 5 GHz frequency block which is
used by 802.11a and optionally by 802.11n.
• The maximum amount of power that a Wi-Fi device can
transmit is limited by local regulations, such as FCC Part
15 in the US.
• Wi-Fi has fairly high power consumption compared to
some other standards.

19. Application Of Wi-Fi
Technology
• There are no boundaries
if you are using Wi-Fi.
• Computers can be
interconnected and
enable check and
balance whether employs
are working or not.
• A project can be
presented to all the
members whether in the
form of excel sheet, ppt
or word document.

20. Application Of Wi-Fi
Technology
• If 2 or 3 members of your family have their
own laptops they would be able to share
their data, files and photos..
• Many public places are also supplied with
Wi-Fi connectivity to access internet like
cafe, restaurants, and clubs to attract the
clients.