ios 4

App Development Essentials: -

1. peers in smartphone market 
2. Remarkable technological achievements.

Anatomy of an iPhone 4: -

1. Sleek Device
2. 115.2mm long
3. 58.61 mm wide
4. 9.3mm deep.
5. 137 grams weight
6. GPRS
7. EDGE
8. 3G wireless support
9. digital compass
10. GPS
11. in accelerometer 
12. a gyroscope
13. A proximity sensor
14. at Ambient Light Sensor 
15. Bluetooth
16. WiFi
17. Multitouch Screen 
18. a vibration generator 
19. 5MP autofocus camera with built in flash 
20. 30 frame per second front facing camera
21. music 40 hrs; Video 10 hrs; talk non stop 14 hrs.

iOS 4: -

1. Os is called iOS4
2. Apple's Mac OS X operating system to run on the iPhone Adapted.
3. built on UNIX like foundation called Darwin 
4. Mach Kernel, Core Services Media and Cocoa Touch Layer Interface

 Display: -

1. 3.5 inch display
2. Resolution 960 * 640 pixels
3. displays 326 PixelsPerInch (ppi)
4. 800: 1 Contrast Ratio
5. In Plane Switching (IPS) LED
6. Capacitive Touch Screen 
7. Screen scratch, oil and fingerprint resistant coated surface oleophopic
8. Proximity Sensor -> automatically turns off the screen when you put the phone to your ear
9. Ambient Light Detection
10. Adjusts the brightness

Wireless Connectivity: -

1. WiFi connect at Either 802.11b; 802.11g; 802.11n speeds
2. Phone CALLS AT & T device supports GSM / EDGE (2G)
3. Faster speeds (UMTS) Universal Mobile Communications System
4. HSDPA High Sped Downlink Packet Access
5. HSUPA High Speed ​​Uplink -known as 3G; 7.2 Mbps.
6. Bluetooth v 2.1 Enhanced Data Rate

Wired Connectivity: -

1. 3.5mm headset jack - headphones or audio devices 
2. 30 pin dock - USB 2.0 connection for v synching and Battery Charging

Memory: -

1. 16 GB
2. 32GB 
3. flashdrive shape 
4. No additional memory cards

Camera: -

1. 5 MP autofocus StillCamera 
2. HD Video Resolution 720p 30 frames per second (fps)
3. LED flash 
4. VGA resolution 
5. 30 fps Front camera

Sensor: -

1. Proximity Sensor 
2. Accelerometer 
3. Three axis gyroscope
4. Ambient Light Sensor 

Location Detection: -

1. GPS Assisted GPS (A-GPS)
2. approximate location- cellular- WiFi information 

Central Processing Unit (CPU): -

1. Apple A4 system-on-chip; ARM Cortex A8 chip; with Imagination Technologies to Power VR graphics processing unit.
2. Cortex A8 designed by a British company ARM Holdings; based on ARMv7 processorArchitecture; low power requirements and high performance

Graphics Processing Unit: -

1. (Power VR SGX 535 GPU Imagination Technologies) handles iphone 4 Graphics
2. Support OpenGLES 1.1 / 2.0

Speaker and Microphone: -

1. Built in microphone and speaker
2. sound quality of speaker is poor

Vibration: -

1. vibrates to indicate the call
2. vibrate for application too

semester03