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This article is about the line of tablet computers by Apple Inc.. For other uses, see iPad (disambiguation).

iPad

The iPad Air

Developer Apple Inc.

Manufacturer Foxconn (on contract[1])

Type Tablet computer

Release date 1st generation:

April 3, 2010 (Wi-Fi)[2][3]

April 30, 2010 (Wi-Fi + 3G)[4]

May 28, 2010 (International)

2:

March 11, 2011 (United States)

March 25, 2011 (International)

3rd generation:

March 16, 2012

4th generation & Mini 1st generation:

November 2, 2012

Air:

November 1, 2013

Mini 2nd generation:

November 12, 2013

Units sold 200 million (as of June 2014) [5]

Operating system 1st generation: iOS 5.1.1

2, 3rd & 4th generation, Air, Mini 1st & 2nd generation: iOS 7.1.1, released April 22, 2014

Power Built-in rechargeable Li-Po battery

25 W·h (90 kJ), 10hr life[6]

System-on-chip used 1st generation: Apple A4

2: Apple A5

3rd generation: Apple A5X

4th generation: Apple A6X

Air: Apple A7

Mini 1st generation: Apple A5

Mini 2nd generation: Apple A7

CPU 1st generation:

1 GHz ARM Cortex-A8[6][7]

2:

1 GHz dual-core ARM Cortex-A9

3rd generation:

1 GHz dual-core ARM Cortex-A9

4th generation:

1.4 GHz dual-core Apple A6X

Air:

1.4 GHz dual-core Apple A7

Mini 1st generation:

1 GHz dual-core ARM Cortex-A9

Mini 2nd generation:

1.3 GHz dual-core Apple A7

Memory 1st generation:

256 MB DDR RAM[8]

2:

512 MB DDR2 RAM[9]

3rd & 4th generation:

1024 MB LPDDR2 RAM[10]

Air:

1024 MB LPDDR3 RAM

Mini 1st generation:

512 MB DDR2 RAM

Mini 2nd generation:

1024 MB LPDDR3 RAM

Storage 16, 32, 64, or 128 GB flash memory[6][11]

Display 1st generation & 2:

1024×768 px (132 PPI), 9.7 in (250 mm) diagonal, 4:3, LED-backlit IPS LCD[6]

3rd & 4th generation, & Air:

2048×1536 px (264 PPI), 9.7 in (250 mm) diagonal, 4:3

Mini 1st generation:

1024×768 px (163 PPI), 7.9 in (200 mm) diagonal, 4:3

Mini 2nd generation:

2048×1536 px (326 PPI), 7.9 in (200 mm) diagonal, 4:3

Graphics 1st generation:

PowerVR SGX535[12]

2:

Dual-core PowerVR SGX543MP2[13]

3rd generation:

Quad-core PowerVR SGX543MP4

4th generation:

Quad-core PowerVR SGX554MP4

Air:

Quad-core PowerVR G6430

Mini 1st generation:

Dual-core PowerVR SGX543MP2

Mini 2nd generation:

Quad-core PowerVR G6430

Input Multi-touch screen, headset controls, proximity and ambient light sensors, 3-axis accelerometer, digital compass

2 added: 3-axis gyro

Camera 1st generation: None

2: VGA Front-facing and 720p rear-facing

3rd generation: VGA Front-facing and 5 megapixels rear-facing

4th generation, Air, Mini 1st & 2nd generation: 720p Front-facing and 5 megapixels rear-facing

Connectivity

Wi-Fi 802.11 a/b/g/n

1st generation & 2:

Bluetooth 2.1 + EDR

GSM models also include UMTS / HSDPA 850, 1900, 2100 MHz GSM / EDGE 850, 900, 1800, 1900 MHz

CDMA model also includes CDMA/EV-DO Rev. A 800, 1,900 MHz

3rd & 4th generation:

Bluetooth 4.0 technology

GSM models also include LTE 700, 2,100 MHz UMTS / HSDPA/HSPA+ / DC-HSDPA 850, 900, 1900, 2100 MHz GSM / EDGE 850, 900, 1800, 1900 MHz

CDMA model also includes LTE 700 MHz CDMA/EV-DO Rev. A 800, 1,900 MHz UMTS / HSDPA/HSPA+/DC-HSDPA 850, 900, 1,900, 2,100 MHz GSM / EDGE 850, 900, 1800, 1900 MHz

Online services iTunes Store, App Store, iCloud, iBookstore

Dimensions

1st generation:

9.56 in (243 mm) (h)

7.47 in (190 mm) (w)

0.50 in (13 mm) (d)

2:

9.50 in (241 mm) (h)

7.31 in (186 mm) (w)

0.34 in (8.6 mm) (d)

3rd & 4th generation:

9.50 in (241 mm) (h)

7.31 in (186 mm) (w)

0.37 in (9.4 mm) (d)

Air:

9.40 in (239 mm) (h)

6.6 in (170 mm) (w)

0.29 in (7.4 mm) (d)

Mini 1st generation:

7.87 in (200 mm) (h)

5.3 in (130 mm) (w)

0.28 in (7.1 mm) (d)

Mini 2nd generation:

7.87 in (200 mm) (h)

5.31 in (135 mm) (w)

0.29 in (7.4 mm) (d)

Weight

1st generation Wi-Fi:

1.5 lb (680 g)

1st generation Wi-Fi + 3G:

1.6 lb (730 g)[6]

2 Wi-Fi:

1.325 lb (601 g)

2 GSM 3G (AT&T/global):

1.351 lb (613 g)

2 CDMA 3G (Verizon):

1.338 lb (607 g)

3rd generation Wi-Fi:

1.44 lb (650 g)

3rd generation Wi-Fi + 4G (LTE):

1.46 lb (660 g)

4th generation Wi-Fi:

1.44 lb (650 g)

4th generation Wi-Fi + 4G (LTE):

1.46 lb (660 g)

Air Wi-Fi:

1.034 lb (469 g)

Air Wi-Fi + Cellular:

1.054 lb (478 g)

Mini 1st generation Wi-Fi:

0.68 lb (310 g)

Mini 1st generation Wi-Fi + 4G (LTE):

0.69 lb (310 g)

Mini 2nd generation Wi-Fi:

0.73 lb (330 g)

Mini 2nd generation Wi-Fi + Cellular:

0.75 lb (340 g)

Related articles iPhone, iPod Touch (Comparison)

Website [url removed, login to view]

iPad (/ˈaɪpæd/ eye-pad) is a line of tablet computers designed and marketed by Apple Inc., which runs Apple's iOS. The first iPad was released on April 3, 2010; the most recent iPad models, the iPad Air and second generation iPad Mini, were revealed on October 22, 2013 and went on sale November 1, 2013, and November 12, 2013, respectively. The user interface is built around the device's multi-touch screen, including a virtual keyboard. The iPad has built-in Wi-Fi and, on some models, cellular connectivity. As of June, 2014, there have been over 200 million iPads sold since its release in 2010.[5]

An iPad can shoot video, take photos, play music, and perform Internet functions such as web-browsing and emailing. Other functions—games, reference, GPS navigation, social networking, etc.—can be enabled by downloading and installing apps. As of October 2013, the App Store has more than 475,000 native apps by Apple and third parties.[14]

There have been five versions of the iPad. The first generation established design precedents, such as the 9.7-inch screen size and button placement, that have persisted through all models. The iPad 2 added a dual core Apple A5 processor and VGA front-facing and 720p rear-facing cameras designed for FaceTime video calling. The third generation added a Retina Display, the new Apple A5X processor with a quad-core graphics processor, a 5-megapixel camera, HD 1080p video recording, voice dictation, and 4G (LTE). The fourth generation added the Apple A6X processor and replaces the 30-pin connector with an all-digital Lightning connector. The iPad Air added the Apple A7 processor, the Apple M7 motion coprocessor and reduced the form factor for the first time since the iPad 2. iOS 5.1 added Siri to the third and fourth generations and the iPad Mini.

There have been two versions of the iPad Mini. The first generation features a reduced screen size of 7.9 inches and features similar internal specifications as the iPad 2. It also uses the Lightning connector. The second generation features the Retina Display, the Apple A7 processor and the Apple M7 motion coprocessor, matching the internals specifications of the iPad Air.

Kĩ năng: iPad

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