1.
MOBILE HANDSETS

2.
Contents
 Introduction
 Handset Architecture
 Handset Operating Systems
 Generations of mobile technology
 Mobile handsets according to technology

3.
What Is A Mobile Handset?
 A mobile handset
(handset) is an electronic
device that provides
services to users, e.g.:
 Managing address book
 Scheduling calendar
 Cellular telephony Example handsets:
 Accessing Internet, email Apple iPhone, BlackBerry Storm, Palm
TreoPro
 Handsets include
smartphones and PDAs

4.
What’s Inside a Mobile Handset?
Source: [3]

5.
Handset Architecture (1)
 Handsets use several hardware components:
 Microprocessor
 ROM
 RAM
 Digital signal processor
 Radio module
 Microphone and speaker
 Hardware interfaces
 LCD display

6.
Handset Architecture (2)
 Handsets store system data in electronically-erasable
programmable read-only memory (EEPROM)
 Service providers can reprogram phones without requiring
physical access to memory chips
 OS is stored in ROM (nonvolatile memory)
 Most handsets also include subscriber identity
module (SIM) cards

7.
SIM Cards
 They include their own microprocessor and 16 KB –
4 MB EEPROM
 They come in two sizes
 Their versatility arises from portability of
information
 SIM card identifies subscriber to network
 Stores personal information, address books, messages, service-
related information

8.
Handset Operating Systems
 Currently, handsets run several OSes:
 Symbian OS
 iPhone OS (an embedded version of OS X)
 Windows Mobile
 BlackBerry OS
 Google Android Platform (based on Linux)
 With the exceptions of Symbian and Android,
these OSes are proprietary [9–10]
 Telecom carriers frequently “lock down” handset
firmware, OSes to prevent user modifications

9.
Advantages of mobile technologies

10.
0G TELEPHONES

11.
1G MOBILE HANDSETS

12.
Ex for 2G MOBILE HANDSET

13.
Ex for 3G mobile handset

14.
Some examples for 4G mobile handsets

15.
CONCLUSION
 So by this presentation we can examine that as the
technology is developing the compatibility and the
features of the mobile handsets are increasing day by
day.