1. YOGESH PARMAR
BCA ( MSC –IT RUNNING )

2.  1864: James Clerk Maxwell proved the existence
of electromagnetic waves
 1887 Heinrich Hertz sent and received wireless
waves, using a spark transmitter
 1920: Marconi discovers short wave radio, with
wavelengths between 10 and 100 meters.
 The first wireless LAN was created in at the
University of Hawaii in 1971.

3. What is Wi-Fi?
 Wi-Fi is stands for wireless fidelity.
 Requirement of Wi-Fi is mostly in Network Adapters, USB
Adapters, internal and external antennas, all kinds of
Access points.
 A Wireless Adapter translates data into a radio signal and
transmits it using an antenna.
 A router receives the signal and decodes it. The router
sends the information to the Internet using a physical
wired Ethernet connection.

4.  Theterm Wi-Fi, first used commercially in
August 1999, was coined by a brand-
consulting firm called interbrand
Corporation that the Alliance had hired to
determine a name that was "a little catchier
than 'IEEE 802.11b Direct Sequence"

5. SPEED OF WI-FI
 wi-fi network use radio technology to
transmit and receive the data at a high
speed.
 (1) 802.11
 (2) 802.11a
 (3) 802.11b
 (4) 802.11g
 (5) 802.11n

6. A and B is 10mbps and G is 54mbps
 And Upcoming N is 300mbps to get
speed on your internet connection.

7. HOW TO WIFI NETWORK WORK?
 The wi-fi of basic concept is same as walkie-talkies.
 wi-fi hotspot is created by installing and access point to and
internet connection
 when wi-fi enabled devices encounters a hotspots the
devices can than connect to that net-work wirelelissly
 a single access point can support up to 30-users and can
function within a range of 100-150 feet indoors and up to
300 feet outdoor.
 many access point can be connected to each other via
Ethernet cable to create a single large network.

8. Wi-Fi OBJECT
2.A roof-mounted Wi-Fi
1. Wireless PCI Network Card
antenna
3.Wireless Network Access Point 4.Laptop Wi-Fi cards

9. 1.Wireless PCI Network Card
 Network card that plugs into a PCI slot on
your computer's motherboard. Also available
as PCMCIA cards for use in laptops
 PDA or laptop to connect to your PC to share
files or an Internet connection

10. 2.A roof-mounted Wi-Fi antenna
 A Wi-Fi enabled device such as a personal computer, video
game console, Smartphone or digital audio player can
connect to the Intetnet when within range of a wireless
network connected to the Internet. The coverage of one or
more (interconnected) access points — called hotspots can
comprise an area as small as a few rooms or as large as
many square miles. Coverage in the larger area may depend
on a group of access points with overlapping coverage. Wi-
Fi technology has been used in wireless mesh networks, for
example, in London, UK.
 In addition to private use in homes and offices, Wi-Fi can
provide public access at Wi-Fi hotspots provided either
free-of-charge or to subscribers to various commercial
services. Organizations and businesses - such as those
running airports, hotels and restaurants - often provide free-
use hotspots to attract or assist clients.

11. 3.Wireless Network Access Point
 Allow machines to connect onto a network
to share resources such as a Broadband
Internet connection and a printer. If looking
for an access point.
 access point-: the ap is the wireless LAN
transceiver
or" base connection" that connect one or
more wireless
devices simultaneously to the internate.

12. 4.Laptop Wi-Fi cards
 These are PCMCIA cards that slide into a
special slot on many laptops, adding wi-fi
connectivity to laptops.
 wi-fi card-:they accept the wireless signal
and relay information they can be internal
and external.

13. WHERE IS USE OF Wi-Fi?
 Offices
 Homes
 Industries
 Hospitals
 Hotels/ restaurants
 Banks
 IT companies

14. ADVANTAGES & DISADVANTAGES FOR Wi-Fi
 The some advantages of Wi-Fi is
mobility,ease of installation,costly,speed,
secure,flexibility.
 The disadvantages of Wi-Fi is limited
range and high power consumption.

15. EXAMPLE OF Wi-Fi

16. ADVANCE VERSION OF Wi-Fi
 Wi-MAX is the Advance version of Wi-Fi.
 Wi-MAX is the providing the more security and
range compare to Wi-Fi.
 Wi-MAX stands for the Worldwide
Interoperability Microwave Access.

17. BLUETOOTH
 Bluetooth wireless technology is a
short-range radio technology.
 Bluetooth wireless technology makes it
possible to transmit signals over short
distances between telephones,
computers and other devices and
thereby simplify communication and
synchronization between devices.
 The Bluetooth wireless technology
comprises hardware, software and
interoperability requirements.
 Transmits at up to 1 Mbps over a
distance of 33 feet and is not impeded
by physical barriers

18. WI-FI V/S BLUETOOTH
 Bluetooth is the shortes range of
wireless communication up to 10Fit.
 Where Wi-Fi is the largest range to
wireless communicate .
 Bluetooth is get data to transfer speed is
1.0mbps where Wi-Fi get data transfer
speed up to 802.11a to 802.11n.
 Now a days Wi-Fi is the best use for
people better than Bluetooth.

19. THANK YOU