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Development history of iPad series
1. Apple Tablet PC
On1October 27th, 20 1065438, it was released at the Apple Conference held at Obabuyana Art Center in San Francisco, USA. Located between Apple's smartphone iPhone and the notebook product MacBook series, there are only five buttons (Home, Power, Volume Plus &; Subtraction, as well as gravity sensing and mute mode switch), the volume key layout is opposite to that of iPhone, providing functions such as browsing the Internet, sending and receiving emails, reading e-books, playing audio or video.
2.iPad 2
It was released on March 3, 20 1 1 and listed in the United States on March 3,1/. 2011was listed in 26 other countries on March 25th, and China was listed on May 6th. 20 1 1 On September 22nd, Apple China officially announced that the 3G version of the iPad 2 was officially launched, and the price was 4,688 yuan and 5,488 yuan respectively according to different capacities.
3.iPad (third generation)
20 12 On March 8th, Apple released the third generation iPad at Cao Fang Art Center. Apple China official website information, Apple's third-generation iPad was named "brand new iPad". The shape is similar to that of iPad 2, but the battery capacity is increased. There are three 4000mAh lithium batteries, which are faster and adopt A7 dual-core processor. The graphics processor enhances the quad-core GPU, and the price will be the same as the iPad 2 in the United States. Meanwhile, the third generation iPad supports 802.11a/b/g/n WiFi (802.11n works at 2.4GHz and 5GHz, and is compatible with LTE network connection.
4.iPad (fourth generation)
2012101On October 24th, Apple held a new product launch conference to release the fourth generation iPad tablet computer. It has a 9.7-inch screen, equipped with A6X chip, and its performance is about twice that of the A3X chip used in the previous generation IPad. It has 5 million iSight cameras, supports LTE networks of more operators, and the front camera supports 720p camera with Lightning interface. It was released on the 24th, including the black-and-white version, with the Wi-Fi version starting at $499 and the LTE version starting at $629. 201212 On February 7th, the fourth generation iPad officially landed in Chinese mainland market. IPad 4 128G version 20 13 was released on February 5th.
5.iPad (fifth generation)
On March 23rd, 20 17, Beijing time, Apple launched its new iPad in official website. The new iPad has a height of 240mm (9.4 inches), a width of 169.5mm (6.6 inches) and a thickness of 7.5mm (0.29 inches). The weight is 469 grams (1.03 pounds), and the honeycomb version is 478 grams (1.05 pounds). Adopt Retina display, 9.7-inch (diagonal) LED backlight Multi? The touch screen adopts IPS technology, with 2048 x 1536 pixel resolution and 264 ppi, and is coated with anti-oil stain and anti-fingerprint.
On the chip side, A9 chip with 64-bit architecture is adopted, and M9 coprocessor is embedded. The rear camera supports an 800-pixel camera, supports 1080p video shooting, and supports1200,000-pixel FaceTimeHD camera. Built-in 32.4 watt-hour lithium polymer rechargeable battery.
At the same time, iPad Air 2 stopped selling.
Reference: Ipad-Baidu Encyclopedia