A mini presentation on mobile phones ; Covers:- *History & Evolution *Major Operating Systems Used *Connectivity in Mobile Phones-Bluetooth ,Wifi,etc *Working of Networks and cellular calls Good for a quick 20 mins presentations in Schools & Colleges .

1. G
R
aj
es
M
o
b
i
l
e

2. d
u
c
t
i
o
n
a cellular phone, cell phone, hand phone,
at can make and receive telephone calls
und a wide geographic area.

3. t
o
r
y
T
h
e
f
i
r
s
t
o
f
f
i
c

4. i
n
C
o
o
p
e
R
e
s
e
a
r
c
h
e
r
f
o
r

5. u
t
i
o
n

6. c
t
u
r
e
r
s

7. a
M
o
b
i
l
e
A
m
o
d
e
r
n
d
a
y

8. r
e
e
n
O
n
c
e
U
s
e
d
o
n
l
y

9. e
s
o
f
s
c
AMOLED
nic light-emitting diode)
c compounds
y
sage
o Manufacture
esire ;replaced with LCD
S
u
p
e
r
A
M
O
L
Retina display
marketing term created by Apple
pixel density high enough such that
human eye is unable to make out
No pixilation
Used in all apple devices

10. t
f
o
r
m
Platform- Operating System +Processors
Processors
oC)
e video encoders & decoders

11. W
h
a
t
’
s
a
p
r
o
c
e
s
s
o

12. g
S
y
s
t
e
m
hardware and the User
T
h
e
4
m
a
i
n
O

13. oid – Google
n 2007
veloped by Android Inc,
oogle
OS till date
Versions:
Android v1 2007
to
Android 6 2015
ROMS:
en Mod

14. c
t
i
v
i
t
y
hich a phone
h other machines :

15. WiFi
2.11 protocol in 1997,2 Mbit/s
in 1999,11 Mbits/s
computer networking technology
d 5 ghz radio bands
ed connections
t
antenna type
stem (WPS)
tivity
nnectivity

16. t
o
o
t
h
endor Ericsson in 1994
ge over short distances
h UHF radio waves
es between 2400 and 2483.5 MHz
h Special Interest Group
than 10m, up to 100m
on compared to WiFi
data transfer
ling
rs,earphones

17. S
B
U
n
i
v
e
r
s
a
l
S
e
r
i

18. P
h
o
n
e
C
a
M
o
b
i
l
e
P
h
o
n
e
s
E
a
c

19. -
t
o
-
m
o
b
N
e
t
w
o
r
k
C
o
n
tr
o
l
K
O
ri
gi
n
a
ti
n
g
T
el
R
e
c
ei
vi
n
g
T
el

20. r
e
e
n

21. a
s
e
s
t
a
M
a
s
t
p
o
w

22. r
e
e
n

23. a
G
S
M
S
i

24. S
M
p
h
o
n
2
1
7
P
u
l
s
e
s
p
e
E
a
c
h
f
r
e

25. 
T
h