iPad | The first-generation iPad showing its home screen | Developer | Apple Inc. | Manufacturer | Foxconn (on contract[1]) | Type | Tablet computer | Release date | Wi-Fi model (U.S.): April 3, 2010[2][3]
Wi-Fi + 3G Model (U.S.): April 30, 2010[4]
International: May 28, 2010[5] iPad 2 (U.S.): March 11, 2011[6] iPad 2 (International): March 25, 2011
3rd gen (U.S.): March 16, 2012 | Units sold | 84.1 million (as of 31 March 2012)[7][8][9][10][11][12][13][14][15] | Operating system | 6.0
Latest version released September 19, 2012; 23 days ago | Power | Built-in rechargeable Li-Po battery
25 W·h (90 kJ), 10hr life[16] | System-on-chip used | 1st generation
Apple A4
2nd generation
Apple A5
3rd generation
Apple A5X | CPU | 1st generation
1 GHz ARM Cortex-A8[16][17]
2nd generation
1 GHz dual-core ARM Cortex-A9
3rd generation
1 GHz dual-core ARM Cortex-A9 | Storage capacity | 16, 32, or 64 GB flash memory[16] | Memory | 1st generation
256 MB DDR RAM[18]
2nd generation
512 MB DDR2 RAM[19]
3rd generation
1 GB DDR2 RAM[20] | Display | 1st & 2nd generation
1024 × 768 px 132 PPI 4:3 aspect ratio
9.7 in (250 mm) diagonal
XGA, LED-backlit IPS LCD[16]
3rd generation
2048×1536 px 264 PPI | Graphics | 1st generation
PowerVR SGX535[21]
2nd generation
PowerVR SGX543MP2[22]
3rd generation
PowerVR SGX543MP4 | Input | Multi-touch screen, headset controls, proximity and ambient light sensors, 3-axis accelerometer, digital compass
2nd generation adds: 3-axis gyro | Camera | 1st generation: None
2nd generation: Front-facing and 720p rear-facing
3rd generation: Front-facing and 1080p rear-facing | Connectivity | Wi-Fi 802.11 a/b/g/n1st & 2nd Generation
Bluetooth 2.1 + EDRGSM models also includeUMTS / HSDPA 850, 1,900, 2,100 MHzGSM / EDGE 850, 900, 1,800,