Wi-Fi allows electronic devices to connect to the internet and each other wirelessly using radio bands. Devices like computers, phones, and tablets can access the internet through a wireless network access point with a typical range of 20 meters indoors. Now Wi-Fi is ubiquitous and we rely on constant internet access through our smartphones, laptops, and other mobile devices for tasks like staying in touch, banking, getting information, and planning activities. Without internet access, common activities would be more difficult and time consuming.

1. PRESENTATION BY : DEBANGSHU BHATTACHARYA

2. DEFINITION
:-
Wi-Fi (orWiFi) is a local
area wireless
technology, that allows
an electronic device to
participate in computer
networking using 2.4
GHz UHF and 5 GHz
SHF ISM radio bands.

3. FUNCTIONALI
TY
Many devices can use Wi-Fi, e.g.
personal computers, video-game
consoles, smartphones, digital
cameras, tablet computers and
digital audio player. These can
connect to a network resource
such as the internet via a wireless
network access point.
Such an access point (or hotspot)
has a range of about 20 meters (66
feet) indoors and a greater range
outdoors.
Hotspot coverage can comprise an
area as small as single room with
walls that block radio waves, or as
large as many square kilometers
achieved by using multiple over

4. WI-FI
TODAY:-
Now we have WiFi, it’s
sometimes harder to think
what we can’t do, rather
than what we can. With
WiFi we have the internet
instantly at our fingertips,
as long as we have a
smartphones, mobile
device or laptop close to
hand.

5. LIFE
WITHOUT
INTERNET:-
 Now days, it’s hard to imagine what life
would be like a without the internet.
 Staying in touch with people far away
would require posting a letter.
 Banking involved lengthy queues in the
local branch.
 Literature would be taken out from the
library, a book to read to pass the time
or some educational content to help
with studies.
 Application forms might take several
attepms to get spelling and grammar
accurate.
 To plan a journey you would take out a
map. A trip into town was the only way
to check out the latest fashions and

6. APPLICATIONS
OF WI-FI
o Syne your music library, photo
library, or other files with your
smartphone usb-free
o Wirelessly transfer photos from
your digital camera
o Share files with nearby computers
o Stream movies to any tv in the
house
o Forward notifications from your pc
to your smartphone
o Send documents to your printer
from any computer or smartphone

7. BY : DEBANGSHU
BHATTACHARYA
Thank You