Mobile handests ppt


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This presentation is useful for the people who are looking after for the evolution of mobile handsets according to the growth market and technology

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Mobile handests ppt

  2. 2. Contents Introduction Handset Architecture Handset Operating Systems Generations of mobile technology Mobile handsets according to technology
  3. 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. 4. What’s Inside a Mobile Handset? Source: [3]
  5. 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. 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. 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. 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. 9. Advantages of mobile technologies
  10. 10. 0G TELEPHONES
  12. 12. Ex for 2G MOBILE HANDSET
  13. 13. Ex for 3G mobile handset
  14. 14. Some examples for 4G mobile handsets
  15. 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.