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1. Mobile World Hardware Perspective By Mohab El-Shishtawy

3. Basic Mobile Hardware

4. Connectivity

6. Features All features are extracted from smart phones not dump oneN-Series for NokiaiPhone 3GS WP7 PhonesAndroid powered phonesor later

7. Basic Hardware Touch Screen Processing units Ram, Rom and Memory Card

9. Resistive (cont..) Pros: The screens are usually inexpensive It can be easily operated with any pointing devices They are much more accurate than capacitive touch screens They are easy to use and are more reliable Cons: Multi touch support not available These are highly sensitive to scratches Poor visibility in sunlight

10. Capacitive Consists of an insulator such as glass, coated with a transparent conductor such as indium tin oxide. Human body is also an electrical conductor. Touching the surface of the screen results in a distortion of the screen's electrostatic field.

11. Capacitive(cont..) Pros: Multi touch support available Good visibility even in sunlight Not affected by dirt and moisture Glossy looks Cons: Humidity must be at least 5% to achieve capacitive effect Expensive than resistive touch screen Doesn’t work with pointed objects

12. Resolution and Size The size of the screen which is measured diagonally across the face screen. Measured by inches Most common iPhone 3.5-inch HTC 4-inch Ranges from (3.0 to 4.5) inch

13. Resolution It is the number of distinct pixels in each dimension that can be displayed. Represented by the physical number of columns and rows of pixels creating the display (e.g., 240 x 320). More Pixels == More Realistic screen. DPI The number of 'dots' or pixels per each inch.

14. Resolution and Size More pixels on same size will give brighter image quality (more clear). Eye can detect up to 300 DPI. As a programmer you concern about Resolution NOT Screen Size.

15. Microprocessor Mobile microprocessors must be small and consume little power Size can be solved with System-on-a-Chip configurations Sleep mode during longer pauses (requires support from the OS and possibly from the applications). Uses ARM structure System-on-a-Chip (CPU,GPU,ROM, RAM, Radio, External interfaces).

16. SoC (NVIDIA Tegra2) CPU: Dual-Core, 1 GHz per core Cache:1 MB Memory: Up to 1GB,(DDR2-667) GPU : 8 cores Supports (12 MP Camera, Display 1680x1050) USB 2.0 OTG, USB 2.0 ULPI, HDMI, MIPI CSI/DSI/HSI, UART, SPI, SDIO, I2C, I2S Examples (Motorola Atrix , Samsung Galaxy S2)

17. SoC (Apple A5) CPU: Dual-Core, 1 GHz per core Cache:1 MB 512 MB of low-power DDR2 RAM clocked at 1066 MHz Dynamically adjust its frequency to save battery life Examples (iPad2,iPhone5 to be released)

18. Ram, Rom and memory card ROM: where the OS (Firm Ware)of mobile installed, it can be modified (system update) Ranges from (512MB to 1.5GB) RAM: read/write from/to any address, fast, looses data when powered off Ranges from (128MB to 1GB) important for Apps programmers.

19. Ram, Rom and memory card Storage uses Flash Memory to store data permanently as HDD in computer Divide into two types On chip flash memory as (N8 16GB and iPhone 32GB). Extension by using SD cards(mini and micro SD). Notice On chip flash memory is NOT a RAM

20. Connectivity Network Bluetooth USB

21. Network 2.5G (EDGE) - Deployed in 2003 - Data rate 236.8kbps to 384kbps - used in mobile phones 3G (WCDMA) - Allowsmultimedia contents like mobile TV, audio-video conferencing, video on demand, fax - High speed internet speed up to 1.92Mbps

22. Network(cont..) 3.5G (HSDPA) - Higher data speed and capacity - Down-link speed 3.6, 7.2 to 14Mbps - referred as 3G+,3G Turbo,3G EDGE. 4G - AllowsGaming Services, High Definition HDTV - Ultra-broadband internet Access 1GBps - Support for IPV6 protocol

23. Bluetooth Classified into classes and versions. Class 1 range 20-30 meters. Class 2 range 5-10 meters. Version 2.0 data rate 2.1 Mbit/s. Version 3.0 data rate 24 Mbit/s. The closer you are to the bluetooth transmitter, the faster you will receive files.

24. USB USB 1.1 works at 12 MBits/sec while USB 2.0 works at 480 MBits/sec. Most phones uses now Micro-USB 2.0. USB OTG (on the go) - Enable host and device roles swapping within the connection - Connecting flash memory to your mobile - Supported in (N8,Galaxy S) - Require support from system

25. Sensors Proximity sensor Accelerometer Gyroscope

26. Proximity sensor Sensor able to detect the presence of nearby objects Emits an electromagnetic or electrostatic field and looks for changes in the field or return signal. Used for auto turn-off May used in further application.

27. Accelerometer Is an instrument for measuring acceleration, detecting and measuring vibrations. Sense movement in only one direction, so true 3D position sensing must use three. Used in all smart phone and devices like Wii Remote First introduced by Apple in iPhone

28. Gyroscope A gyroscope is a device for measuring or maintaining orientation. Three degrees of rotational freedom Introduced by Apple in iPhone4 2010

29. Any Questions??

30. Thank You Twitter @MohabTarek